Energetics of quantum correlations

@article{Dillenschneider2009EnergeticsOQ,
  title={Energetics of quantum correlations},
  author={Raoul Dillenschneider and Eric Lutz},
  journal={EPL (Europhysics Letters)},
  year={2009},
  volume={88},
  pages={50003}
}
We consider a photo-Carnot engine that consists of a single-mode radiation field in an optical cavity. One the heat reservoirs is made of a beam of thermally entangled pairs of two-level atoms that interact resonantly with the cavity. We express the thermodynamic efficiency of the engine in terms of the quantum discord of the atomic pair and find that it can exceed its classical value. Our results show that useful work can be extracted from quantum correlations, indicating that the latter are a… 
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References

SHOWING 1-10 OF 33 REFERENCES
Coherent control of an atomic collision in a cavity.
TLDR
An experiment in which two Rydberg atoms crossing a nonresonant cavity are entangled by coherent energy exchange, characterized by a collision mixing angle 4 orders of magnitude larger than for atoms colliding in free space with the same impact parameter.
Thermodynamics of Quantum Information Systems — Hamiltonian Description
TLDR
This work proves the formula within Hamiltonian description of drawing work from a quantum system and a heat bath, at the cost of entropy of the system, and derives Landauer's principle as a consequence of the second law within the considered model.
Quantum computation and quantum information
  • T. Paul
  • Physics
    Mathematical Structures in Computer Science
  • 2007
This special issue of Mathematical Structures in Computer Science contains several contributions related to the modern field of Quantum Information and Quantum Computing. The first two papers deal…
Entanglement in many-body systems
Recent interest in aspects common to quantum information and condensed matter has prompted a flurry of activity at the border of these disciplines that were far distant until a few years ago.…
Atom-photon interactions
This book of the physical phenomena resulting from the interactions between atoms and photons brings together and discusses different theoretical approaches which have up to now been dispersed in…
Irreversibility for all bound entangled states.
TLDR
It is proved that irreversibility occurs in the process of formation for all nondistillable entangled states and the impossibility of local cloning of a known entangled state is proved.
Thermodynamics and an Introduction to Thermostatistics
GENERAL PRINCIPLES OF CLASSICAL THERMODYNAMICS. The Problem and the Postulates. The Conditions of Equilibrium. Some Formal Relationships, and Sample Systems. Reversible Processes and the Maximum Work…
APPL
TLDR
A prototype probability package named APPL (A Probability Programming Language) is presented that can be used to manipulate random variables and examples illustrate its use.
Phd by thesis
  • R. Lathe
  • Geography, Environmental Science
    Nature
  • 1988
Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most…
and H
  • Walther, Science 299
  • 2003
...
...