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33 results on '"Novikov, B.V."'

5. Two-Dimensional Magnetoexcitons in the Fractional Quantum Hall Regime

Author

Moskalenko, S.A., Liberman, M.A., Novikov, B.V., Kiseliova, E.S., Dumanov, E.V., and Cerbu, F.

Subjects
General Relativity and Quantum Cosmology, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Abstract

The coplanar electrons and holes in a strong perpendicular magnetic field at low temperatures form magnetoexcitons when theCoulomb interactions between electrons and holes lying on the lowest Landau levels play the main role. However, when the electrons and hole layers are spatially separated, and the Coulomb electron-hole interaction diminishes, a two-dimensional electron gas (2DEG) and a two-dimensional hole gas (2DHG) are formed. Their properties under conditions of the fractional quantum Hall effect can influence the properties of 2D magnetoexcitons. These properties are discussed in the present review., Компланарні електрони і дірки в сильному перпендикулярному магнітному полі за низьких температур утворюють магнітоекситони, якщо кулонівська взаємодія між електронами і дірками на нижчих рівнях Ландау відіграє основну роль.Але якщо шари з електронами та дірками розділені просторово і кулонівська електрон–діркова взаємодія слабшає, утворюються двовимірні електронний і дірковий гази. Їх властивості в умовах дробового квантового ефекту Холла можуть впливати на властивості двовимірних магнітоекситонів. Ці властивості обговорено в даній роботі.

Published
2022
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7. Threshold of stimulated emission in multivalley lead salts

Author

Tomm, J.W., Mocker, M., Kelz, T., Elsaesser, T., Klann, R., Novikov, B.V., Talalaev, V.G., Tudorovskii, V.E., and Bottner, H.

Subjects
Light-emitting diodes -- Research, Magnetic fields -- Research, Quantum optics -- Research, Semiconductors -- Research, Photoemission -- Research, Physics
Published
1995

12. Tuning of the interdot resonance in stacked InAs quantum dot arrays by an external electric field

Author

Talalaev, V.G., Werner, P., Gosele, U., Tomm, J.W., Zakharov, N.D., Cirlin, G.E., Sokolov, A.S., Gobsch, G., Tonkikh, A.A., Shtrom, I.V., Goldhahn, R., Ustinov, V.M., Novikov, B.V., Winzer, A.T., and Tarasov, G.G.

Subjects
Indium -- Optical properties, Indium -- Electric properties, Gallium arsenide -- Optical properties, Gallium arsenide -- Electric properties, Physics
Abstract

Optoelectronics properties of vertically stacked InAs/GaAs quantum dot (QD) arrays are analyzed. The application of an external bias along growth direction is found to substantially impact the photoluminescence properties.

Published
2006

13. Non-commutative Grillet semigroups

Author

Novikov, B.V.

Subjects
Mathematics::Operator Algebras
Abstract

Grillet semigroups are introduced. This class of semigroups contains regular semigroups and complete commutative semigroups (by Grillet’s terminology). Some structural theorems are proved.

Published
2014

15. Gorenstein Latin squares

Author

Dokuchaev, M.A., Kirichenko, V.V., Novikov, B.V., and Plakhotnyk, M.V.

Subjects
Mathematics::Algebraic Geometry, Mathematics::Commutative Algebra, Mathematics::Rings and Algebras, Mathematics::History and Overview
Abstract

We introduce the notion of a Gorenstein Latin square and consider loops and quasigroups related to them. We study some properties of normalized Gorenstein Latin squares and describe all of them with order n≤8.

Published
2008

17. Principal quasi-ideals of cohomological dimension 1

Author

Novikov, B.V.

Subjects
Mathematics::Commutative Algebra, Mathematics::K-Theory and Homology, Mathematics::Operator Algebras, Mathematics::Quantum Algebra, Mathematics::Algebraic Topology
Abstract

We prove that a principal quasi-ideal of a noncommutative free semigroup has cohomological dimension 1 if and only if it is free.

Published
2003

24. Spectroscopy of Exciton States of InAs Quantum Molecules.

Author

Talalaev, V.G., Tomm, J.W., Zakharov, N.D., Werner, P., Novikov, B.V., Cirlin, G.É., Samsonenko, Yu.B., Tonkikh, A.A., Egorov, V.A., Polyakov, N.K., and Ustinov, V.M.

Subjects
SEMICONDUCTOR junctions, INTERFACES (Physical sciences), SURFACES (Physics), FERROELECTRIC devices, SOLID state electronics, SEMICONDUCTORS
Abstract

Tunnel-coupled pairs of InAs quantum dots (quantum molecules) were formed by molecular beam epitaxy in a GaAs matrix. Optical and structural properties of the obtained quantum molecules were studied. Four molecular exciton states forming a photoluminescence spectrum were revealed. The photoluminescence decay times indicate the possibility of interlevel radiative recombination from the second excited state, which is of particular importance for designing mid-infrared devices. © 2004 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Published
2004
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