The tripartite quantum-memory-assisted entropic uncertainty relation and upper bound on shareability of quantum discord [PDF]
Scientific Reports, 2022 Quantum discord and quantum uncertainty are two important features of the quantum world. In this work, the relation between entropic uncertainty relation and the shareability of quantum discord is studied.
Hazhir Dolatkhah +2 more
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Quantum Discord: A Measure of the Quantumness of Correlations [PDF]
Physical Review Letters, 2001 Two classically identical expressions for the mutual information generally differ when the systems involved are quantum. This difference defines the quantum discord. It can be used as a measure of the quantumness of correlations.
H Ollivier, Wojciech H. Zurek
semanticscholar +6 more sources
Measuring quantum discord at the LHC [PDF]
Journal of High Energy PhysicsThere has been an increasing interest in exploring quantities associated with quantum information at colliders. We perform a detailed analysis describing how to measure the quantum discord in the top anti-top quantum state at the Large Hadron Collider ...
Tao Han +3 more
doaj +4 more sources
Quantum Discord, Thermal Discord, and Entropy Generation in the Minimum Error Discrimination Strategy [PDF]
Entropy, 2019 We study the classical and quantum correlations in the minimum error discrimination (ME) of two non-orthogonal pure quantum states. In particular, we consider quantum discord, thermal discord and entropy generation.
Omar Jiménez +3 more
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Quantum discord of thermal two-photon orbital angular momentum state: mimicking teleportation to transmit an image. [PDF]
Light Sci Appl, 2021 We formulate a density matrix to fully describe two-photon state within a thermal light source in the photon orbital angular momentum (OAM) Hilbert space. We prove the separability, i.e., zero entanglement of the thermal two-photon state.
Chen L.
europepmc +2 more sources
Monogamy of quantum discord [PDF]
Quantum Science and Technology, 2021 The original quantum discord (QD) is shown to be not monogamous except for the three-qubit states. Recently, a complete monogamy relation for multiparty quantum system was established for entanglement in (Guo and Zhang 2020 Phys. Rev.
Yu Guo, Lizhong Huang, Yang Zhang
semanticscholar +4 more sources
Mutual Information and Quantum Discord in Quantum State Discrimination with a Fixed Rate of Inconclusive Outcomes. [PDF]
Entropy (Basel), 2021 We studied the mutual information and quantum discord that Alice and Bob share when Bob implements a discrimination with a fixed rate of inconclusive outcomes (FRIO) onto two pure non-orthogonal quantum states, generated with arbitrary a priori ...
Jiménez O +3 more
europepmc +2 more sources
Quantum discord for multiqubit systems [PDF]
Physical Review A, 2021 We evaluate analytically the quantum discord for a large family of multiqubit states. It is interesting to note that the quantum discord of three-qubits and five-qubits is the same, as is the quantum discord of two-qubits and six-qubits. We discover that
B. Li +4 more
semanticscholar +4 more sources
Analysis of Quantum Correlations Obtained Using Local Optimal Universal Asymmetric Cloners [PDF]
Entropy, 2022 We apply the local optimal universal asymmetric cloning machine on an initially pure entangled state of two qubits. As output, we obtain two final states which present quantum correlations.
Cătălina Cîrneci, Iulia Ghiu
doaj +2 more sources
The freezing Rènyi quantum discord. [PDF]
Sci Rep, 2019 AbstractAs a universal quantum character of quantum correlation, the freezing phenomenon is researched by geometry and quantum discord methods, respectively. In this paper, the properties of Rènyi discord is studied for two independent Dimer System coupled to two correlated Fermi-spin environments under the non-Markovian condition.
Li XY +5 more
europepmc +6 more sources