Results 81 to 90 of about 1,306,990 (294)
Quantum Discord for Generalized Bloch Sphere States [PDF]
, 2013 In this study for particular states of bipartite quantum system in 2n?2m dimensional Hilbert space state, similar to m or n-qubit density matrices represented in Bloch sphere we call them generalized Bloch sphere states(GBSS), we give an efficient ...
Jafarizadeh, M. A. +2 more
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Entanglement and quantum discord in optically coupled coherent Ising machines
Physical Review A, 2020 We present analytical and numerical simulation results for squeezing, entanglement, and quantum discord in a dissipatively coupled coherent Ising machine (CIM).
Y. Inui, Y. Yamamoto
semanticscholar +1 more source
Quantum discord and its allies: a review of recent progress [PDF]
Reports on progress in physics. Physical Society, 2017 We review concepts and methods associated with quantum discord and related topics. We also describe their possible connections with other aspects of quantum information and beyond, including quantum communication, quantum computation, many-body physics ...
A. Bera +5 more
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Quantum discord and Maxwell’s demons [PDF]
Physical Review A, 2003 Quantum discord was proposed as an information theoretic measure of the ``quantumness'' of correlations. I show that discord determines the difference between the efficiency of quantum and classical Maxwell's demons in extracting work from collections of correlated quantum systems.
openaire +3 more sources
European Physical Journal C: Particles and Fields, 2023 Quantum resources construct new avenues to explore the cosmos. Considering bipartite-qubit detectors subjected to scalar fields in an expanding spacetime, quantum resources (including quantum coherence, quantum discord, Bell-nonlocality, and nonlocal ...
Huan Yang +4 more
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Non-Markovian Dynamics of Quantum Discord
, 2010 We evaluate the quantum discord dynamics of two qubits in independent and common non-Markovian environments. We compare the dynamics of entanglement with that of quantum discord.
Arruda, L. G. E. +4 more
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Concurrence and Quantum Discord in the Eigenstates of Chaotic and Integrable Spin Chains
Annals of Physics, 2020 There has been some substantial research about the connections between quantum chaos and quantum correlations in many‐body systems. This paper discusses a specific aspect of correlations in chaotic spin models, through concurrence (CC) and quantum ...
A. Ashouri +3 more
semanticscholar +1 more source
Exact dynamics of quantum correlations of two qubits coupled to bosonic baths
New Journal of Physics, 2013 Dynamics of the quantum entanglement and quantum discord of two qubits in two independent baths and a common bath with the Lorentzian spectrum are studied exactly in the numerical sense within the hierarchy approach.
Chen Wang, Qing-Hu Chen
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Correlations in Two-Qubit Systems under Non-Dissipative Decoherence
Axioms, 2020 We built a new set of suitable measures of correlations for bipartite quantum states based upon a recently introduced theoretical framework [Bussandri et al. in Quantum Inf. Proc. 18:57, 2019].
Diego G. Bussandri +3 more
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Remote transfer of Gaussian quantum discord
, 2014 Quantum discord quantifies quantum correlation between quantum systems, which has potential application in quantum information processing. In this paper, we propose a scheme realizing the remote transfer of Gaussian quantum discord, in which another ...
Ma, Lingyu, Su, Xiaolong
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