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Mutual information based measures: Quantum discord

Measurement-based method for verifying quantum discord

Measurement-based method for verifying quantum discord

... INTRODUCTION Quantum correlations play a central role as a resource in quantum information processing and quantum communication ...of quantum correlation and the reason why ...

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Quantum Discord and entropic measures of quantum correlations: Optimization and behavior in finite XY spin chains

Quantum Discord and entropic measures of quantum correlations: Optimization and behavior in finite XY spin chains

... ite quantum systems have attracted strong attention in recent years [1, ...for quantum teleportation [7] and for achieving exponential speed-up in pure state based quantum algorithms [8, ...

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Super Quantum Discord and Inferior  “Geometric Discord” Based on Weak  Measurement in Noninertial Frames

Super Quantum Discord and Inferior “Geometric Discord” Based on Weak Measurement in Noninertial Frames

... of quantum states to be lost because it couples the system and the measuring device weakly, and then causes small change to quantum ...define quantum discord [27] instead of the projective ...

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Rényi generalizations of quantum information measures

Rényi generalizations of quantum information measures

... Gaussian quantum information theory, the α = 2 R´enyi entropy is useful in studying Gaussian entanglement and other more general quantum correla- tions ...In quantum thermodynamics, α-R´enyi ...

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On the Relation between Quantum Discord and Purified Entanglement

On the Relation between Quantum Discord and Purified Entanglement

... in quantum information such as projective measurements, POVMs and general quantum ...a quantum gate is along with other important quantum computing ...to quantum correlations ...

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Entanglement and Quantum Discord of Two Moving Atoms

Entanglement and Quantum Discord of Two Moving Atoms

... a quantum computer [3]-[7]. Therefore, quantum discord could be a new resource for quantum information pro- ...of quantum discord [8]-[12]. Usually, quan- tum ...

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Mutual information based measures on complex interdependent networks of neuro data sets

Mutual information based measures on complex interdependent networks of neuro data sets

... The advances of technology have given us glimpses of what we hope to be the inner work- ings of the brain. Unfortunately making sense of these glimpses, is not an easy task to say the least. Adding to the difficulties is ...

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Quantum Conditional Mutual Information, Reconstructed States, and State Redistribution

Quantum Conditional Mutual Information, Reconstructed States, and State Redistribution

... It measures the correlations of subsystems C and R relative to subsystem ...the quantum CMI is equivalent to a deep result of quantum information theory—strong subadditivity of the von Neumann ...

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CiteSeerX — Multivariate Mutual Information Measures for Discovering Biological Networks

CiteSeerX — Multivariate Mutual Information Measures for Discovering Biological Networks

... total mutual information-based classifier on the reconstruction of three-variable interactions ...general mutual information to capture multivariate ...variate mutual ...

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Experimental entanglement activation from discord in a programmable quantum measurement

Experimental entanglement activation from discord in a programmable quantum measurement

... processing: discord is necessarily activated into bipartite entanglement, and bipartite entanglement into genuine tripartite entanglement, by the act of performing a local ...approach based on an ϵ -net ...

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Hierarchy of efficiently computable and faithful lower bounds to quantum discord

Hierarchy of efficiently computable and faithful lower bounds to quantum discord

... non-trivial discord-like quantifier in our hierarchy is non-vanishing for all the states that are not classical on B, and corresponds to an SDP optimization ...meaningful discord- like quantifier, but it ...

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Experimental investigation of the evolution of Gaussian quantum discord in an open system

Experimental investigation of the evolution of Gaussian quantum discord in an open system

... in quantum information science, and it has become synonymous with different nonclassical tasks such as quantum teleportation, dense coding, and quantum computation [ 1 ...some quantum ...

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How to observe and quantify quantum-discord states via correlations

How to observe and quantify quantum-discord states via correlations

... possess quantum correlations even if they are not entan- ...of quantum discord [2, 3][4] which is a discrepancy between quantum versions of two classi- cally equivalent expressions for ...

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Mutual information measures for subclass error-correcting output codes classification

Mutual information measures for subclass error-correcting output codes classification

... is based on the maximization or minimization of a criterion ...the mutual information (MI) between the bi-partitions created in each step of the ...quadratic Mutual Information ...

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Invariant quantum discord in qubit-qutrit systems under local dephasing

Invariant quantum discord in qubit-qutrit systems under local dephasing

... of quantum mechanics but also widely regarded as the central resource of quantum information science ...the quantum computation and communication processes rely on entanglement, it has been ...

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Geometric measure of quantum discord for entanglement of Dirac fields in noninertial frames

Geometric measure of quantum discord for entanglement of Dirac fields in noninertial frames

... of quantum discord in all possible bipartite divisions of the tripartite system: the mode A described by Alice, the mode I in Rindler region I (described by Rob), and the complementary mode I I in Rindler ...

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Geometric measure of quantum discord for entanglement of Dirac fields in noninertial frames

Geometric measure of quantum discord for entanglement of Dirac fields in noninertial frames

... of quantum discord in all possible bipartite divisions of the tripartite system: the mode A described by Alice, the mode I in Rindler region I (described by Rob), and the complementary mode I I in Rindler ...

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Local Mutual Information for Dissimilarity-Based ImageSegmentation

Local Mutual Information for Dissimilarity-Based ImageSegmentation

... segmentation based on the definition of a dissimilarity mea- sure on pairs of adjacent pixels is an appealing framework to develop new hierar- chical segmentation ...dissimilarity measures depending on the ...

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Measures and applications of quantum correlations

Measures and applications of quantum correlations

... some measures of QCs which are already proven to be in full compliance with the Requirements of Section ...geometric measures Q G A RE and Q G AB RE defined in terms of relative entropy, which are shown to ...

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Mutual Information Based Feature Selection for Fingerprint Identification

Mutual Information Based Feature Selection for Fingerprint Identification

... using Mutual Information Feature selection is used to identify the useful features and remove the features that are redundant and irrelevant for the task of ...from information theory that are useful ...

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