Search

Your search keyword '"Dutta, Indranil"' showing total 37 results
Start Over Author "Dutta, Indranil" Database OpenAIRE
37 results on '"Dutta, Indranil"'

3. Data

Author

Mitra, Auromita and Dutta, Indranil

Abstract

Production data from the experiment

Published
2022
Full Text
View/download PDF

5. Materials

Author

Mitra, Auromita and Dutta, Indranil

Abstract

Stimuli for eliciting production data

Published
2022
Full Text
View/download PDF

6. Phonetic_Transfer

Author

Dutta, Indranil and Mitra, Auromita

Subjects
Indian English, vowel quality, Phonetics and Phonology, FOS: Languages and literature, bilingual speech, Linguistics, Social and Behavioral Sciences, Bengali, L1-L2 interaction, phonetic transfer
Abstract

This study examines phonetic transfer between Bengali and English in a group of proficient bilingual speakers in India. We measure spectral properties (F1 and F2) of two English vowels, [ʌ] and [æ], to ascertain if L1 influence on L2 increases during mixed-language use, relative to a participant’s unilingual baseline production of L2. Mixed-language data is elicited in two switching paradigms: code-switching and cued picture-naming.

Published
2022
Full Text
View/download PDF

7. Is Attention Always Needed? A Case Study on Language Identification from Speech

Author

Mandal, Atanu, Pal, Santanu, Dutta, Indranil, Bhattacharya, Mahidas, and Naskar, Sudip Kumar

Subjects
Signal Processing (eess.SP), FOS: Computer and information sciences, Sound (cs.SD), Computer Science - Machine Learning, History, Computer Science - Computation and Language, Polymers and Plastics, Computer Science - Sound, Industrial and Manufacturing Engineering, Machine Learning (cs.LG), Audio and Speech Processing (eess.AS), FOS: Electrical engineering, electronic engineering, information engineering, Electrical Engineering and Systems Science - Signal Processing, Business and International Management, Computation and Language (cs.CL), Electrical Engineering and Systems Science - Audio and Speech Processing
Abstract

Language Identification (LID), a recommended initial step to Automatic Speech Recognition (ASR), is used to detect a spoken language from audio specimens. In state-of-the-art systems capable of multilingual speech processing, however, users have to explicitly set one or more languages before using them. LID, therefore, plays a very important role in situations where ASR based systems cannot parse the uttered language in multilingual contexts causing failure in speech recognition. We propose an attention based convolutional recurrent neural network (CRNN with Attention) that works on Mel-frequency Cepstral Coefficient (MFCC) features of audio specimens. Additionally, we reproduce some state-of-the-art approaches, namely Convolutional Neural Network (CNN) and Convolutional Recurrent Neural Network (CRNN), and compare them to our proposed method. We performed extensive evaluation on thirteen different Indian languages and our model achieves classification accuracy over 98%. Our LID model is robust to noise and provides 91.2% accuracy in a noisy scenario. The proposed model is easily extensible to new languages.

Published
2022

8. Nutrient Consumption in India:Evidence from a Village Study

Author

Dutta, Indranil, Kapoor, Shruti, and Pattanaik, Prasanta K.

Subjects
Public Distribution System, Endogeneity, Macro nutrients, India, Micro nutrients, Nutrition
Abstract

Adequate nutrition is one of the basic requirements for survival and is generally regarded as a core dimension in any evaluation of well-being. In the context of India, a country with high prevalence of poor nutrition, there is a dearth of nutrition studies with adequate coverage and comparability. Using primary data on food consumption from a village in a poorer state of India, we study the consumption of key nutrients, namely, calories, protein, carbohydrate, calcium and iron. Investigating the determinants of nutrition intake, we find evidence of consumption smoothing. By correcting for potential endogeneity in both expenditure and consumption of subsidised food through the Public Distribution System (PDS) we demonstrate a causal link from expenditure and the availability of subsidised food grains to nutritional intake. We also find evidence that other individual characteristics such as gender and occupation have an important role to play as determinants of nutrition.

Published
2019

9. Continuous cold atom gyroscope with 1 nrad.s-1 rotation stability

Author

Savoie, Denis, Altorio, Matteo, Fang, Bess, Dutta, Indranil, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2017

10. Cold-atom inertial sensor without deadtime

Author

Fang, Bess, Savoie, Denis, Altorio, Matteo, Mielec, N., Dutta, Indranil, Sapam, Ranjita, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2017

11. Continuous cold-atom inertial sensor with 1 nrad.s -1 rotation stability

Author

Fang, Bess, Dutta, Indranil, Savoie, Denis, Altorio, Matteo, Mielec, N., Sapam, Ranjita, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

12. State of the art cold atom gyroscope without dead times

Author

Geiger, Rémi, Dutta, Indranil, Fang, Bess, Savoie, Denis, Venon, Bertrand, Garrido Alzar, Carlos L., Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

13. Continuous Cold-atom Inertial Sensor with 1 nrad.s−1 Rotation Stability

Author

Savoie, Denis, Dutta, Indranil, Fang, Bess, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

14. Continuous cold-atom inertial sensor with 1 nrad.s^-1 rotation stability

Author

Fang, Bess, Dutta, Indranil, Savoie, Denis, Mielec, N., Sapam, Ranjita, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

15. Continuous Cold Atom Gyroscope with 11 cm^2 Sagnac area at nrad/s stability

Author

Fang, Bess, Savoie, Denis, Dutta, Indranil, Mielec, N., Sapam, Ranjita, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

16. Continuous cold-atom inertial sensor with 1 nrad.s^-1 rotation stability

Author

Fang, Bess, Dutta, Indranil, Savoie, Denis, Venon, Bertrand, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

17. Continuous cold atom inertial sensor with 1 nrad/s rotation stability

Author

Geiger, Rémi, Dutta, Indranil, Fang, Bess, Savoie, Denis, Venon, Bertrand, Garrido Alzar, Carlos L., Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

18. Continuous Cold-atom Inertial Sensor with 1 nrad/s Rotation Stability

Author

Geiger, Rémi, Dutta, Indranil, Fang, Bess, Savoie, Denis, Venon, Bertrand, Garrido Alzar, Carlos L., Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2016

19. Amélioration de la stabilité d'un interféromètre Sagnac à atomes froids : vers un fonctionnement continu

Author

Dutta, Indranil, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris VI, Arnaud Landragin, and STAR, ABES

Subjects
Effet Sagnac, [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph], Transitions Raman stimulées, Cold atoms, Atomes froids, [PHYS.PHYS.PHYS-ATOM-PH] Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph], Atom interferometry, Gyroscope, Gyromètre, Capteur inertiel, Interférométrie atomique
Abstract

This thesis aims at pushing the performances of a cold atom interferometer principally sensitive to rates of rotation in a particular axis. In our experiment, Cesium atoms are laser cooled, trapped and launched in a fountain configuration. According to the Sagnac effect, the sensitivity of the interferometer to rotation is proportional to the area enclosed by the interferometer arms. We use stimulated Raman transitions to split the atoms in two paths and to form a folded Mach-Zehnder-like interferometer architecture using four Raman pulses. With an interrogation time of the atoms of 800 ms, we achieve a Sagnac area as high as 11 cm^2. The thesis describes the improvements to the experimental setup to operate the gyroscope with such a high Sagnac area. A procedure for the relative alignment of the Raman beams at the microrad level is presented, which is critical to meet the interference condition of the cold atoms at the interferometer output. The characterization and mitigation of the vibration noise, affecting the gyroscope, is also demonstrated. We finally demonstrate a short term rotation stability of 160 nrad/s at 1 s and a long term stability of 1.8 nrad/s after 10 000 s of integration time. This stability level represents a factor 5 improvement compared to the previous SYRTE gyroscope experiment of 2009 and a factor 15 compared to other published results. The thesis work also presents a new method of interrogation to operate the gyroscope without dead times, which is important for various applications of cold atom sensors in inertial navigation, geophysics and in fundamental physics., Cette thèse a pour objet de repousser les performances d'un interféromètre à atomes froids principalement sensible aux rotations selon un axe particulier. Des atomes de Cesium sont refroidis par laser, piégés, et lancés verticalement selon une configuration en fontaine. La sensibilité du gyromètre repose sur l'effet Sagnac et est proportionnelle à l'aire physique qu'entourent les deux bras de l'interféromètre. Nous utilisons des transitions Raman stimulées pour séparer les ondes atomiques et former une géométrie d'interféromètre de type Mach-Zehnder replié. Avec un temps d'interrogation de 800 ms, nous parvenons à une aire physique de 11 cm^2. Le manuscrit décrit les améliorations apportées au dispositif expérimental pour faire fonctionner le gyromètre avec une telle aire Sagnac. Une procédure d'alignement relatif des faisceaux Raman au niveau du microrad est présentée et est particulièrement importante pour permettre aux ondes de matière d'interférer. La caractérisation des bruits de vibration impactant la sensibilité du gyromètre, ainsi que sa réjection sont également décrites. Nous démontrons une sensibilité de 160 nrad/s à 1 s, et une stabilité long terme de 1.8 nrad/s après 10 000 s d'intégration. Ce niveau de stabilité représente une amélioration d'un facteur 5 par rapport à la précédente expérience de gyromètre du SYRTE de 2009, et d'un facteur 15 par rapport aux autres résultats publiés. Cette thèse présente également une nouvelle méthode d'interrogation des atomes pour opérer le gyromètre sans temps morts, un aspect important pour diverses applications des capteurs à atomes froids en navigation inertielle, en géophysique et en physique fondamentale.

Published
2015

20. Metrology with Atom Interferometry: inertial sensors from the laboratories to the field

Author

Landragin, Arnaud, Dutta, Indranil, Gillot, Pierre, Savoie, Denis, Cheng, Bing, Fang, Bess, Garrido Alzar, Carlos L., Geiger, Rémi, Merlet, Sébastien, Pereira dos Santos, Franck, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2015

21. Atom Interferometry for inertial sensors: fundamental and practical sensitivity limits

Author

Landragin, Arnaud, Dutta, Indranil, Gillot, Pierre, Kohlhaas, Ralf, Lautier, Jean, Meunier, Matthieu, Savoie, Denis, Cheng, Bing, Fang, Bess, Garrido Alzar, Carlos L., Geiger, Rémi, Merlet, Sébastien, Pereira dos Santos, Franck, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2015

22. Demonstration of a cold-atom Sagnac gyroscope with 2 nrad/s stability

Author

Fang, Bess, Savoie, Denis, Dutta, Indranil, Garrido Alzar, Carlos L., Geiger, Rémi, Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2015

23. Metrology with atom interferometers: from the laboratory to the field

Author

Landragin, Arnaud, Dutta, Indranil, Gillot, Pierre, Savoie, Denis, Cheng, Bing, Fang, Bess, Geiger, Rémi, Merlet, Sébastien, Pereira dos Santos, Franck, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2015

24. Group inequality and conflict

Author

Dutta, Indranil, Madden, Paul, and Mishra, Ajit

Abstract

This paper presents a theoretical model to show how distributional concerns can engender social conflict. We have a two-period model that highlights the crucial role of future inequality. Equality of assets and income in the current period does not stop conflict from arising the anticipated future inequality is significant. Further we find that the impact of inequality on conflict is not straightforward. Societies with low levels of inequality show no conflict; groups engage in conflict only when inequality exceeds a certain threshold level. Additionally the model shows that the link between inequality and conflict may be non-monotonic.

Published
2014

25. Cold atom interferometer for inertial navigation

Author

Landragin, Arnaud, Lautier, Jean, Dutta, Indranil, Hardin, T., Geiger, Rémi, Garrido Alzar, Carlos L., Merlet, Sébastien, Pereira dos Santos, Franck, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2014

26. Gyromètre atomique de très grande aire

Author

Meunier, Matthieu, Dutta, Indranil, Garrido Alzar, Carlos L., Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

National audience

Published
2013

27. High sensitivity large area atomic gyroscope

Author

Meunier, Matthieu, Dutta, Indranil, Lévèque, T., Guerlin, C., Garrido Alzar, Carlos L., Landragin, Arnaud, Laboratoire Kastler Brossel (LKB (Jussieu)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Théorie et métrologie

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2012

28. Large area cold atom gyroscope

Author

Guerlin, C., Meunier, Matthieu, Dutta, Indranil, Lévèque, T., Garrido Alzar, Carlos L., Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2012

29. Large area cold atom gyroscope

Author

Dutta, Indranil, Meunier, Matthieu, Garrido Alzar, Carlos L., Landragin, Arnaud, Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Interférométrie Atomique et Capteurs Inertiels, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2012

30. On Measuring Vulnerability to Poverty

Author

Dutta, Indranil, Foster, James, and Mishra, Ajit

Subjects
Uncertainty, Vulnerability, Global political economy, Poverty
Abstract

There is a growing interest on dynamic and broader concepts of deprivation such as vulnerability, which takes in to account the destitution of individuals from future shocks. We use the framework of decision making under uncertainty to arrive at a new measure of vulnerability to poverty. We highlight the importance of current standard of living to better capture the notion of vulnerability. In conceptualizing the new class of measures of vulnerability we thus move beyond the standard expected poverty measures that is commonly found in the literature. We also axiomatically characterize the new class of measure and discuss some of it's properties.

Published
2010

31. The burden of government debt in the Indian states: Implications for the MDG poverty target

Author

Dutta, Indranil

Subjects
O10, O23, poverty, Öffentliche Schulden, Armut, Teilstaat, ddc:330, Indien, I32, Millennium Development Goals, debt
Abstract

In this paper we explore what impact, if any, government debts have on achieving the Millennium Development Goals for the Indian states. To fulfill the goals, national governments, especially in the developing world, have to undertake major investments in the social sector; but how much they will really be able to do so will depend on the conditions of their finances. For the Indian states we find that government investment in the social sector is extremely important to reduce poverty, but the government's debt burden is actually stopping several states from attaining the MDG targets. Although, in the medium term the impact of the debt on poverty is not very harmful, in the longer run it has a significant negative impact. Therefore for policy purposes reduction in debt should be given a priority.

Published
2007

32. Measures of food insecurity at the household level

Author

Dutta, Indranil, Gundersen, Craig, and Pattanaik, Prasanta K.

Subjects
I38, Unterernährung, Armut, ddc:330, Nahrungsmittelversorgung, Messung, I31, D63, USA
Abstract

Food insecurity and hunger have traditionally been measured by aggregate food supplies or by variables correlated with food insecurity. Because these measures often poorly reflect individuals’ true deprivation, economists have turned to surveys with direct questions about food insecurity. Using these surveys, households have then been classified into broad categories, a classification system which ignores the richness of the multiple questions. In this paper, we propose food insecurity measures, along the lines of the well established poverty measures, which incorporates this richness and allow us to reflect the depth and severity, in addition to the incidence, of food insecurity. Using these indices, we calculate the extent of food insecurity and hunger in the United States. Along with giving a richer picture of food insecurity in the US, these food insecurity measures demonstrates that the ordering of various demographic categories differs depends on the choice of measure. – deprivation ; food insecurity ; hunger ; poverty measures

Published
2006

33. Does inequality lead to conflict?

Author

Dutta, Indranil and Mishra, Ajit

Subjects
Einkommensverteilung, D90, ddc:330, Sozialer Konflikt, D74, D31, Theorie, C78
Abstract

This paper presents a simple model to show how distributional concerns can engender social conflict. We have a two period model, where the cost of conflict is endogenous in the sense that parties involved have full control over how much conflict they can create. We find that anticipated future inequality plays a crucial role in determining the level of conflict in the current period. The model also provides an explanation for why similar levels of inequality may exhibit drastically different levels of conflict. Further, we argue that the link between inequality and conflict may be non-monotonic. – conflict ; wealth inequality ; Nash bargaining

Published
2005

34. Inequality, corruption, and competition in the presence of market imperfections

Author

Dutta, Indranil and Mishra, Ajit

Subjects
O12, Einkommensverteilung, Korruption, Kreditmarkt, K42, Wettbewerb, Unvollkommener Markt, ddc:330, D31, D43
Abstract

We analyze the relation between inequality, corruption and competition in a developing economy context where markets are imperfect. We consider an economy where different types of households (efficient and inefficient) choose to undertake production activities. For production, households borrow capital from the credit market. They also incur non-input costs which they could avoid by bribing inspectors. Due to information asymmetry and wealth inequality, the credit market fails to screen out the inefficient types. In addition to the imperfect screening, the inefficient type’s entry is further facilitated by corruption. We analyze the market equilibrium and look at some of the implications. We show that a rise in inequality can lead to an increase in corruption along with greater competition. – corruption ; competition ; credit market ; inequality ; screening

Published
2005

35. Essays on Financial Liberalisation, Financial Crises and Economic Growth

Author

Atiq, Zeeshan, DUTTA, INDRANIL I, Haque, Mohammad, and Dutta, Indranil

Subjects
Financial system, Financial liberalisation, Financial Development, Economic Growth, Financial Crises
Abstract

This thesis investigates the impact of financial liberalisation policies on finance-growth relationship and financial crises. Analysis of recent trends and economic performance of financially developed and stable economies raises at least two very important questions that seem to have strong analytical connections. The first question is associated with the link between financial development and economic growth and the second question focuses the possible association between the policies of financial liberalisation and financial vulnerability. In this thesis we aim to shed light on some of the aspects that have gained so much attention from academics and policy makers during the last two decades.First we address whether excessive liberalisation has caused financial development to lose its effectiveness in generating economic growth. We employ a dynamic panel data analysis for 88 countries over the period of 1973 to 2005. Our index for the financial sector liberalisation covers seven aspects: credit controls and reserve requirements, interest rate controls, entry barriers, state ownership, policies on securities markets, banking regulations and restrictions on capital market. We use a comprehensive financial development indicator constructed through principal component analysis of five different indicators: bank private credit to GDP ratio, liquid liability to GDP ratio, deposit money bank assets to total bank assets ratio, deposit money bank assets to GDP ratio, and bank credit to bank deposit ratio. The results indicate that the positive effect of financial development on long-run growth continues to decline as the financial sector becomes more liberalised. Our results are robust to changes in the financial development indicators and the dis-aggregation of the financial liberalisation index.Second, we examine the possibility for an optimal sequence of financial sector reforms that may reduce an economy’s vulnerability to financial crises. We construct a distance measure from the countries that followed a more gradual approach and liberalised their capital account at a later stage. Our analysis shows that the experience of the countries that delayed or followed a very gradual approach for the liberalisation of their capital accounts have high level of implications to those countries that allowed for shock approach or liberalised their capital account before bringing reforms in other sectors.

Published
2014

36. Essays on the Measurement of Poverty

Author

Roope, Laurence Stanley James, PETERS, SIMON SA, DUTTA, INDRANIL I, Peters, Simon, Zank, Horst, and Dutta, Indranil

Subjects
Aggregation, BHPS, Equity, Great Britain, Intensi…fication, Intertemporal Poverty, Mitigation, Poverty line, Poverty measurement
Abstract

This thesis is comprised of three distinct chapters, each of which is concerned insome way with the measurement of poverty.The …first chapter provides social preference conditions which are both necessary and sufficient for a poverty line to arise endogenously. In so doing, it turns out that the apparently independent ‘identi…fication’ and ‘aggregation ’problems in poverty measurement are subtly intertwined. Necessary and sufficient conditions are provided for the existence of both relative and absolute poverty lines. In each case, one of the conditions is a familiar weak monotonicity property. The other conditions are simple consistency requirements.In the second chapter, we propose classes of intertemporal poverty measures which take into account both the debilitating impact of prolonged spells in poverty and the mitigating effect of periods of a­ffluence on subsequent poverty. The weight assigned to the level of poverty in each time period depends on the length of the preceding spell of poverty or of non-poverty. The proposed classes of intertemporal poverty measures are quite general and allow for a range of possible judgements as to the overall impact on a poor period of preceding spells of poverty or affluence. We discuss the properties of the proposed classes of measures and axiomatically characterize them.The third chapter is an empirical application of the intertemporal poverty measures proposed in the second chapter. The new measures, together with an existing intertemporal poverty measure from the literature, are used to analyse intertemporal poverty in Great Britain during the period 1991-2005, using data from the British Household Panel Survey. Previous studies on poverty using this data-set have employed static measures of poverty. We illustrate how the use of intertemporal poverty measures makes it possible to analyse aspects of poverty which cannot be captured by static, annual, measures of poverty. We then model the determinants of intertemporal poverty, conditional upon being poor, using a Heckman two-step selection model.

Published
2013

37. Health Inequality and Development:Achieving Better Health in Developing Countries

Author

Mark McGillivray, Indranil Dutta, David M. Lawson, McGillivray, Mark, Dutta, Indranil, and Lawson, David

Subjects
Economic growth, Labour Force Participation, media_common.quotation_subject, Longevity, Developing country, Health outcomes, Health Inequality, Child Nutrition, Health equity, Quantile regression, Child mortality, Quality of life (healthcare), Child Mortality, Life expectancy, Economics, Quantile Regression, Demography, media_common
Abstract

Throughout most of the last century there has been steady improvement in health outcomes. Among them are improvements in life expectancy, which has increased significantly across countries. On average people now live longer and healthier than even 50 years ago. Life expectancy improved globally from a lowly 48 years in 1955 to 68 years by 2005, and for a number of countries it currently exceeds 80 years (WHO 1996; UNDP 2007). This substantial increase in longevity has been coupled by a dramatic control of infectious diseases that has further improved the average quality of life. Despite this massive improvement in health outcomes there is a growing concern that disparities in health achievements are increasing. Consider the life expectancy for African females, which was 49 years in 1978 compared to the world average of 63. By 1998, the average life expectancy for females improved by six years, whereas in African countries it only increased by two years, thus widening the life expectancy gap (WHO 1999).

Published
2010

Catalog

Books, media, physical & digital resources
See catalog results