Results 21 to 30 of about 1,306,706 (295)
Quantum Information Processing, 2018 Originally introduced as the difference between two possible forms of quantum mutual information, quantum discord has posteriorly been shown to admit a formulation according to which it measures a distance between the state under scrutiny and the closest
P. R. Dieguez, R. Angelo
semanticscholar +5 more sources
A Pedagogical Overview of Quantum Discord [PDF]
Open Systems & Information Dynamics, 2014 Recent measures of nonclassical correlations are motivated by different notions of classicality and operational means. Quantum discord has received a great deal of attention in studies involving quantum computation, metrology, dynamics, many-body physics, and thermodynamics.
Modi, Kavan
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The sudden death and sudden birth of quantum discord. [PDF]
Sci Rep, 2018 The interaction of quantum system and its environment brings out abundant quantum phenomenons. The sudden death of quantum resources, including entanglement, quantum discord and coherence, have been studied from the perspective of quantum breaking ...
Xia W, Hou JX, Wang XH, Liu SY.
europepmc +2 more sources
Topology of quantum discord [PDF]
Journal of Physics A: Mathematical and Theoretical, 2013 Revised version submitted to Physical Review ...
Nga T. T. Nguyen, Robert Joynt
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Quantum correlation of microwave two-mode squeezed state generated by nonlinearity of InP HEMT [PDF]
Scientific Reports, 2023 This study significantly concentrates on cryogenic InP HEMT high-frequency circuit analysis using quantum theory to find how the transistor nonlinearity can affect the quantum correlation of the modes generated.
A. Salmanogli
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Revealing Tripartite Quantum Discord with Tripartite Information Diagram
Entropy, 2017 A new measure based on the tripartite information diagram is proposed for identifying quantum discord in tripartite systems. The proposed measure generalizes the mutual information underlying discord from bipartite to tripartite systems, and utilizes ...
Wei-Ting Lee, Che-Ming Li
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Quantum Discord for d⊗2 Systems. [PDF]
Sci Rep, 2015 AbstractWe present an analytical solution for classical correlation, defined in terms of linear entropy, in an arbitrary "Equation missing" system when the second subsystem is measured. We show that the optimal measurements used in the maximization of the classical correlation in terms of linear entropy, when used to calculate the quantum discord in ...
Ma Z, Chen Z, Fanchini FF, Fei SM.
europepmc +7 more sources
Quantum correlations beyond entanglement in a classical-channel model of gravity [PDF]
Scientific Reports, 2022 A direct quantization of the Newtonian interaction between two masses is known to establish entanglement, which if detected would witness the quantum nature of the gravitational field.
Federico Roccati +6 more
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Quantum coherence and geometric quantum discord [PDF]
Physics Reports, 2017 Quantum coherence and quantum correlations are of fundamental and practical significance for the development of quantum mechanics.They are also cornerstones of quantum computation and quantum communication theory. Searching physically meaningful and mathematically rigorous quantifiers of them are long-standing concerns of the community of quantum ...
Ming‐Liang Hu +5 more
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Non-commutativity measure of quantum discord. [PDF]
Sci Rep, 2016 AbstractQuantum discord is a manifestation of quantum correlations due to non-commutativity rather than entanglement. Two measures of quantum discord by the amount of non-commutativity via the trace norm and the Hilbert-Schmidt norm respectively are proposed in this paper.
Guo Y.
europepmc +6 more sources