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Thermodynamic resources in continuous-variable quantum systems
- Source :
- npj Quantum Information, Vol 7, Iss 1, Pp 1-7 (2021), npj quantum information
- Publication Year :
- 2021
- Publisher :
- Nature Portfolio, 2021.
-
Abstract
- Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also in tasks that are not evidently thermodynamic. Here we develop a framework for identifying such resources in diverse applications of bosonic continuous-variable systems. Introducing the class of bosonic linear thermal operations to model operationally-feasible processes, we apply this model to identify uniquely quantum properties of bosonic states that refine classical notions of thermodynamic resourcefulness. Among these are (1) a suite of temperature-like quantities generalizing the equilibrium temperature to quantum, non-equilibrium scenarios; (2) signal-to-noise ratios quantifying a system's capacity to carry information in phase-space displacement; and (3) well-established non-classicality measures quantifying the resolution in sensing and parameter estimation tasks.<br />9 pages (6 figures), 4-page supplemental material
- Subjects :
- Mathematics [Science]
Class (set theory)
Work (thermodynamics)
Computer Networks and Communications
Thermodynamic equilibrium
Computer science
QC1-999
FOS: Physical sciences
01 natural sciences
Displacement (vector)
010305 fluids & plasmas
Continuous variable
0103 physical sciences
Computer Science (miscellaneous)
Statistical physics
010306 general physics
Quantum
Condensed Matter - Statistical Mechanics
Quantum Physics
Statistical Mechanics (cond-mat.stat-mech)
Estimation theory
Physics
Statistical and Nonlinear Physics
QA75.5-76.95
Resolution (logic)
Quantum Optics
Computational Theory and Mathematics
Electronic computers. Computer science
Quantum Information
Quantum Physics (quant-ph)
Optics (physics.optics)
Physics - Optics
Subjects
Details
- Language :
- English
- ISSN :
- 20566387
- Volume :
- 7
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- npj Quantum Information
- Accession number :
- edsair.doi.dedup.....07a61902e47bebb2247db978c6a168f6