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Energetics of quantum correlations [PDF]
EPL (Europhysics Letters), 2009 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 ...
Raoul Dillenschneider, Eric Lutz
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Quantum correlations and ergotropy
Physical Review E, 2022 Understanding the role of classical and quantum correlations in work extraction is a problem of fundamental importance in thermodynamics. We approach this problem by considering that, in closed quantum systems, the maximum cyclic work extractable is equal to the ergotropy.
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The Einstein–Podolsky–Rosen Steering and Its Certification
Entropy, 2019 The Einstein–Podolsky–Rosen (EPR) steering is a subtle intermediate correlation between entanglement and Bell nonlocality. It not only theoretically completes the whole picture of non-local effects but also practically inspires novel quantum ...
Yi-Zheng Zhen +4 more
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Exploring multipartite quantum correlations with the square of quantum discord [PDF]
, 2013 We explore the quantum correlation distribution in multipartite quantum states based on the square of quantum discord (SQD). For tripartite quantum systems, we derive the necessary and sufficient condition for the SQD to satisfy the monogamy relation ...
A. Brodutch +6 more
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Are quantum correlations symmetric?
Quantum Information and Computation, 2010 We provide operational definition of asymmetry of entanglement: An entangled state contains asymmetric entanglement if its subsystems can not be exchanged (swapped) by means of local operations and classical communication. We show that in general states have asymmetric entanglement.
HorodeckiPaweł +2 more
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Can quantum correlations be completely quantum? [PDF]
Journal of Physics A: Mathematical and Theoretical, 2008 8 pages, 5 figures, REVTeX ...
Barbara Synak-Radtke, Łukasz Pankowski
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Complete condition for nonzero quantum correlation in continuous variable systems
New Journal of Physics, 2015 Quantum correlation provides a promising measure beyond entanglement. Here, we propose a necessary and sufficient condition for nonzero quantum correlation in continuous variable systems, which is simple and easy to perform in terms of a marker Q _r . In
Chengjie Zhang +5 more
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Effects of environmental parameters to total, quantum and classical correlations [PDF]
, 2006 We quantify the total, quantum, and classical correlations with entropic measures, and quantitatively compare these correlations in a quantum system, as exemplified by a Heisenberg dimer which is subjected to the change of environmental parameters ...
Anteneodo C +9 more
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Thermodynamics and quantum correlations
, 2023 Thermodynamics traditionally deals with macroscopic systems at thermal equilibrium. However, since the very beginning of the theory, its range of applicability has only increased, nowadays being applied to virtually every field of science, and to systems of extremely different size. This thesis is devoted to the study of thermodynamics in the quantum
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Quantum discord and entanglement in grover search algorithm
Open Physics, 2016 Imperfections and noise in realistic quantum computers may seriously affect the accuracy of quantum algorithms. In this article we explore the impact of static imperfections on quantum entanglement as well as non-entangled quantum correlations in Grover ...
Ye Bin +3 more
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