Entanglement and quantum discord in the cavity QED models [PDF]
Heliyon, 2023 We investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes–Cummings model and the Tavis–Cummings model, which are well-established in cavity quantum electrodynamics.
Hui-hui Miao, Wanshun Li
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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 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
Bo Li +4 more
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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.
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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
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Quantum battery based on quantum discord at room temperature [PDF]
Quantum Science and Technology, 2022 The study of advanced quantum devices for energy storage has attracted the attention of the scientific community in the past few years. Although several theoretical progresses have been achieved recently, experimental proposals of platforms operating as ...
Clebson Cruz +4 more
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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
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Revealing Tripartite Quantum Discord with Tripartite Information Diagram [PDF]
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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Squeezing of Primordial Gravitational Waves as Quantum Discord [PDF]
Universe, 2020 We investigate the squeezing of primordial gravitational waves (PGWs) in terms of quantum discord. We construct a classical state of PGWs without quantum discord and compare it with the Bunch−Davies vacuum.
Akira Matsumura, Yasusada Nambu
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