# 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…

## 152 Citations

When is a quantum heat engine quantum?

- Physics
- 2015

Quantum thermodynamics studies quantum effects in thermal machines. Both quantum coherence and quantum correlations have been theoretically shown to be a physical resource able to boost their…

Quantum and classical dynamics of a three-mode absorption refrigerator

- Physics
- 2017

We study the quantum and classical evolution of a system of three harmonic modes interacting via a trilinear Hamiltonian. With the modes prepared in thermal states of different temperatures, this…

Thermodynamic universality of quantum Carnot engines.

- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2015

It is shown that the definition of heat has to be modified to account for the thermodynamic cost of maintaining non-Gibbsian equilibrium states and the present study shows that this is not permitted by the laws of thermodynamics-independent of the model.

Quantum heat engines: A thermodynamic analysis of power and efficiency

- Physics
- 2012

We show that the operation and the output power of a quantum heat engine that converts incoherent thermal energy into coherent cavity photons can be optimized by manipulating quantum coherences. The…

Roles of quantum coherences in thermal machines

- Physics
- 2020

In this review, the recent developments regarding the role of quantum coherences in the performances of thermal machines --the devices realising the above thermodynamic operations are presented.

Non-Thermal Quantum Engine in Transmon Qubits

- PhysicsEntropy
- 2019

An experimentally realistic quantum engine that uses transmon qubits as working substance is theoretically proposed and the dynamics analytically is solved and its efficiency is calculated.

General theory for quantum linear engines and their efficiency

- Mathematics
- 2021

We present, by means of an exact analytic calculation, the general theory of a linear quantum engine whose working medium is formed by a generic network of parametrically driven coupled oscillators…

The Dynamics of Quantum Correlation and Its Transfer in Dissipative Systems

- Physics
- 2011

Quantum correlation of a general bipartite quantum state may contain not only entanglement but also the ingredient that cannot be accounted for by entanglement. In this paper, we study the dynamics…

Cooperative many-body enhancement of quantum thermal machine power

- PhysicsNew Journal of Physics
- 2018

We study the impact of cooperative many-body effects on the operation of periodically-driven quantum thermal machines, particularly heat engines and refrigerators. In suitable geometries, N two-level…

Single Atom Heat Engine in a Tapered Ion Trap

- Physics
- 2018

Trapped ions in linear Paul traps have been established as a powerful platform for performing experiments in quantum optics, quantum computing, quantum simulation, quantum control, and more recently…

## References

SHOWING 1-10 OF 33 REFERENCES

Coherent control of an atomic collision in a cavity.

- PhysicsPhysical review letters
- 2001

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

- PhysicsOpen Syst. Inf. Dyn.
- 2004

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

- PhysicsMathematical 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

- Physics
- 2008

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

- Physics
- 1992

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.

- PhysicsPhysical review letters
- 2005

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

- Physics
- 1960

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

- Computer Science
- 2001

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

- Geography, Environmental ScienceNature
- 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