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Building with quantum correlations [PDF]
Quantum Information Processing, 2010 `Correlations without correlata' is an influential way of thinking of quantum entanglement as a form primitive correlation which nonetheless maintains locality of quantum theory. A number of arguments have sought to suggest that such a view leads either to internal inconsistency or to conflict with the empirical predictions of quantum mechanics.
Timpson, C, Brown, H
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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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Reveal quantum correlation in complementary bases [PDF]
Sci. Rep. 4, 4036 (2014), 2013 An essential feature of genuine quantum correlation is the simultaneous existence of correlation in complementary bases. We reveal this feature of quantum correlation by defining measures based on invariance under a basis change. For a bipartite quantum state, the classical correlation is the maximal correlation present in a certain optimum basis ...
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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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Large spatial extension of the zero-energy Yu–Shiba–Rusinov state in a magnetic field
Nature Communications, 2020 Local magnetic moments coupled to superconductors can form subgap Yu-Shiba-Rusinov states. Here the authors show that Shiba states made with an InAs nanowire quantum dot have large spatial extent, which is beneficial for making Shiba chains that are ...
Zoltán Scherübl +10 more
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Sensors, 2022 A quantum illumination radar uses quantum entanglement to enhance photodetection sensitivity. The entanglement is quickly destroyed by the decoherence in an environment, although the sensitivity enhancement could survive thanks to quantum correlations ...
Sylvain Borderieux +2 more
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Hierarchy of quantum correlations under non-Markovian dynamics [PDF]
Quantum Information Processing (2021) 20,141, 2020 We investigate the dynamics of quantum correlations (QC) under the effects of reservoir memory, as a resource for quantum information and computation tasks. Quantum correlations of two-qubit systems are used for implementing quantum teleportation successfully, and for investigating how teleportation fidelity, violation of Bell-CHSH inequality, quantum ...
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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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