Results 51 to 60 of about 1,306,871 (197)
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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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
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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Geometric picture of quantum discord for two-qubit quantum states
, 2011 Among various definitions of quantum correlations, quantum discord has attracted considerable attention. To find analytical expression of quantum discord is an intractable task.
Chunxiao Sun +7 more
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Interpreting Quantum Discord in Quantum Metrology [PDF]
, 2015 Multipartite quantum systems show properties which do not admit a classical explanation. In particular, even nonentangled states can enjoy a kind of quantum correlations called quantum discord. I discuss some recent results on the role of quantum discord
Girolami, Davide
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Quantum correlation in three-qubit Heisenberg model with Dzyaloshinskii-Moriya interaction
, 2011 We investigate the pairwise thermal quantum discord in a three-qubit XXZ model with Dzyaloshinskii-Moriya (DM) interaction. We find that the DM interaction can increase quantum discord to a fixed value in the anti- ferromagnetic system, but decreases ...
A.K. Pal +10 more
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Reply to “Comment on ‘How to observe and quantify quantum-discord states via correlations’ ” [PDF]
Physical Review A, 2019 Quantum correlations between parts of a composite system most clearly reveal themselves through entanglement. Designing, maintaining, and controlling entangled systems is very demanding, which raises the stakes for understanding the efficacy of ...
M. Hunt +3 more
semanticscholar +1 more source
Quantum discord and Fisher information for two-qubit system in the presence of thermal fields
AIP Advances, 2023 We consider a double Jaynes–Cummings model for a system of two atoms that interact with a radiation field defined in a thermal spin state. We examine the impact of the parameters of the quantum model on the temporal evolution of quantum discord, quantum ...
M. Algarni, S. Abdel-Khalek, K. Berrada
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