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06/2017, 1st ed. 2017, Quantum Science and Technology, ISBN 3319534106, 534
This book presents a distinctive way of understanding quantum correlations beyond entanglement, introducing readers to this less explored yet very fundamental... 
Quantum theory
eBook
Physical Review Letters, ISSN 0031-9007, 07/2010, Volume 105, Issue 2, p. 020503
We extend the quantum discord to continuous variable systems and evaluate Gaussian quantum discord C(e) for bipartite Gaussian states. In particular, for... 
PHYSICS, MULTIDISCIPLINARY | STATES | Physics - Quantum Physics
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 09/2012, Volume 86, Issue 3
We argue that the geometric discord introduced by Dakic, Vedral, and Brukner [Phys. Rev. Lett. 105, 190502 (2010)] is not a good measure for the quantumness of... 
ENTANGLEMENT | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | OPTICS | Physics - Quantum Physics
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 03/2011, Volume 83, Issue 3
Quantum discord quantifies nonclassical correlations beyond the standard classification of quantum states into entangled and unentangled. Although it has... 
DECOHERENCE | STATES | ENTANGLEMENT | INFORMATION | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | ERROR-CORRECTION | OPTICS | Physics - Quantum Physics | ASYMMETRY | CORRELATIONS | QUANTUM ENTANGLEMENT | QUANTUM STATES | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Journal Article
by Luo, SL and Fu, SS
PHYSICAL REVIEW A, ISSN 1050-2947, 09/2010, Volume 82, Issue 3
Dakic, Vedral, and Brukner [arXiv:1004.0190 (2010)] introduced a geometric measure of quantum discord and derived an explicit formula for any two-qubit state.... 
PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | OPTICS | MATHEMATICS | QUANTUM INFORMATION | MECHANICS | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | INFORMATION | CORRELATIONS | QUANTUM STATES | QUANTUM MECHANICS | GEOMETRY | QUBITS
Journal Article
Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, 10/2012, Volume 45, Issue 42, pp. 425304 - 7
Quantum discord, a measure of quantum correlation beyond entanglement, is initially defined as the discord between two classically equivalent while quantum... 
PHYSICS, MULTIDISCIPLINARY | PHYSICS, MATHEMATICAL | INFORMATION | Constituents | Equivalence | Correlation analysis | Mathematical analysis | Disturbances | Entanglement | Gain | Physics - Quantum Physics
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 04/2010, Volume 81, Issue 4
Quantum discord, a kind of quantum correlation, is defined as the difference between quantum mutual information and classical correlation in a bipartite... 
ENTANGLEMENT | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | OPTICS | Physics - Quantum Physics | QUANTUM INFORMATION | CORRELATIONS | QUANTUM ENTANGLEMENT | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | INFORMATION | PROCESSING
Journal Article
Nature Physics, ISSN 1745-2473, 09/2012, Volume 8, Issue 9, pp. 666 - 670
  The existence of better-than-classical quantum information processing (QIP) models which consume very little or no entanglement suggests that separable or... 
Quantum physics | Consumption | Tasks | Correlation analysis | Dissipation | Data processing | Entanglement | Entangled states | Quantum theory | Physics - Quantum Physics
Journal Article
Physical Review Letters, ISSN 0031-9007, 10/2014, Volume 113, Issue 14, p. 140405
In this Letter we exploit the recently solved conjecture on the bosonic minimum output entropy to show the optimality of Gaussian discord, so that the... 
QUANTUM INFORMATION | CHANNELS | PHYSICS, MULTIDISCIPLINARY | ENTANGLEMENT | Correlation | Computation | Quantum optics | Gaussian | Entropy | Channels | Optimization
Journal Article
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, ISSN 1751-8113, 03/2019, Volume 52, Issue 13, p. 135301
Quantum discord measures quantum correlation by comparing the quantum mutual information with the maximal amount of mutual information accessible to a quantum... 
PHYSICS, MULTIDISCIPLINARY | resource theory | quantum correlation | resource monotone | quantum discord | PHYSICS, MATHEMATICAL | VECTOR | Physics - Quantum Physics
Journal Article
International Journal of Modern Physics B, ISSN 0217-9792, 01/2017, Volume 31, Issue 2, p. 1650256
Discord and entanglement characterize two kinds of quantum correlations, and discord captures more correlation than entanglement in the sense that even... 
quantum mapping | Quantum discord | quantum correlation | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | QUANTUM | PHYSICS, MATHEMATICAL
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 10/2011, Volume 84, Issue 4
Quantum discord provides a measure for quantifying quantum correlations beyond entanglement and is very hard to compute even for two-qubit states because of... 
PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | OPTICS | Physics - Quantum Physics | CORRELATIONS | QUANTUM ENTANGLEMENT | ALGORITHMS | MINIMIZATION | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | QUBITS
Journal Article
Nature Physics, ISSN 1745-2473, 09/2012, Volume 8, Issue 9, pp. 671 - 675
Coherent interactions that generate negligible entanglement can still exhibit unique quantum behaviour. This observation has motivated a search beyond... 
QUANTUM INFORMATION | STATES | FACTORIZATION | PHYSICS, MULTIDISCIPLINARY | CLONING | ENTANGLEMENT | Quantum physics | Consumption | Correlation | Searching | Coherence | Encoding | Entanglement | Gaussian
Journal Article
New Journal of Physics, ISSN 1367-2630, 2014, Volume 16, Issue 3, p. 33027
We study the computational complexity of quantum discord (a measure of quantum correlation beyond entanglement), and prove that computing quantum discord is... 
entanglement measures | quantum mechanics | quantum discord | channel capacity | computational complexity | SEPARABILITY CRITERION | CAPACITY | COMMON RANDOMNESS | PHYSICS, MULTIDISCIPLINARY | CRYPTOGRAPHY | CONTINUOUS-VARIABLE SYSTEMS | CHANNEL | INFORMATION-THEORY | SQUASHED ENTANGLEMENT | GAUSSIAN STATES | ADDITIVITY
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 05/2010, Volume 81, Issue 5
We evaluate the quantum discord dynamics of two qubits in independent and common non-Markovian environments. We compare the dynamics of entanglement with that... 
STATE | OPTICS | ENTANGLEMENT | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | Physics - Quantum Physics | QUANTUM INFORMATION | EVOLUTION | STOCHASTIC PROCESSES | MARKOV PROCESS | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | INFORMATION | EVALUATION | QUANTUM ENTANGLEMENT | COMPARATIVE EVALUATIONS | QUBITS
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 08/2009, Volume 80, Issue 2
We calculate the dissipative dynamics of two-qubit quantum discord under Markovian environments. We analyze various dissipative channels such as dephasing,... 
DECOHERENCE | STATE | OPTICS | ENTANGLEMENT | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | Physics - Quantum Physics
Journal Article
Physics Reports, ISSN 0370-1573, 11/2018, Volume 762-764, pp. 1 - 100
Quantum coherence and quantum correlations are of fundamental and practical significance for the development of quantum mechanics. They are also cornerstones... 
SYSTEM | RELATIVE ENTROPY | PHYSICS, MULTIDISCIPLINARY | ENTANGLEMENT | DYNAMICS | MEASUREMENT-INDUCED-NONLOCALITY | YANASE SKEW INFORMATION | BOND GROUND-STATES | ELECTROMAGNETIC-FIELD | NON-COMMUTATIVITY | LONG-RANGE ORDER | Atoms | Information science | Physics - Quantum Physics
Journal Article