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Intrinsic decoherence effects on correlated coherence and quantum discord in XXZ Heisenberg model
Optical and quantum electronics, 2022Spin qubits are at the heart of technological advances in quantum processors and offer an excellent framework for quantum information processing. This work characterizes the time evolution of coherence and nonclassical correlations in a two-spin XXZ ...
Z. Dahbi, M. Oumennana, M. Mansour
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Quantum Information Processing, 2021
A two-qubit Heisenberg XYZ model with Dzyaloshinsky–Moriya (DM) and Kaplan–Shekhtman–Entin-Wohlman–Aharony (KSEA) interactions is considered at thermal equilibrium. Analytical formulas are derived for the local quantum uncertainty (LQU) and local quantum
A. Fedorova, M. Yurischev
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A two-qubit Heisenberg XYZ model with Dzyaloshinsky–Moriya (DM) and Kaplan–Shekhtman–Entin-Wohlman–Aharony (KSEA) interactions is considered at thermal equilibrium. Analytical formulas are derived for the local quantum uncertainty (LQU) and local quantum
A. Fedorova, M. Yurischev
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Laser Physics Letters, 2020
The one-qubit teleportation protocol is one of the most well-known topics of quantum information theory. Indeed, the goal of this quantum protocol is to teleport an arbitrary quantum state.
M. R. Pourkarimi, S. Haddadi
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The one-qubit teleportation protocol is one of the most well-known topics of quantum information theory. Indeed, the goal of this quantum protocol is to teleport an arbitrary quantum state.
M. R. Pourkarimi, S. Haddadi
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Effective detection of quantum discord by using convolutional neural networks
Quantum Machine IntelligenceQuantum discord is a form of correlation that is defined as the difference between quantum and classical mutual information of two parties. Due to the optimization involved in the definition of classical mutual information of quantum systems, calculating
Narjes Taghadomi +4 more
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Quantum discord of the Werner state in noninertial frames
Physica Scripta, 2020Using the single-mode approximation we study the quantum correlations of a free Dirac field on the Werner state in the noninertial frame. We present analytical quantum discord D and its geometric measurement DG.
M. A. M. Sanchez, Guo-Hua Sun, S. Dong
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Quantum Discord of Certain Two-Qubit States
International Journal of Theoretical Physics, 2019Quantum discord is an effective measure of quantum correlation introduced by Olliver and Zurek. We evaluate analytically the quantum discord for a large family of non-X-states.
Jianming Zhou, Xiaoli Hu, N. Jing
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Phonon-mediated quantum discord in dark solitons
The European Physical Journal Plus, 2019We investigate the quantum correlation dynamics in dark-soliton qubits with a special attention to quantum discord. Recently, dark-soliton qubit exhibiting appreciably long lifetime is proved to be an excellent candidate for information processing ...
M. I. Shaukat +4 more
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Global Quantum Discord and Entanglement in two Coupled Double Quantum Dots AlGaAs/GaAs
International Journal of Theoretical Physics, 2023H. Ait Mansour, M. Faqir, M. El Baz
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Study on estimating quantum discord by neural network with prior knowledge
Quantum Information Processing, 2019Machine learning has achieved success in many areas because of its powerful fitting ability, so we hope it can help us to solve some significant physical quantitative problems, such as quantum correlation. In this research, we will use neural networks to
Y. Liu +4 more
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Dynamics of super quantum discord and optimal dense coding in quantum channels
Journal of Physics A: Mathematical and Theoretical, 2018Quantum discord (QD), super quantum discord (SQD) and optimal dense coding at entangled states of three types of quantum channels, are investigated. The used models include: two-qubit spin squeezing, the two-qubit Heisenberg XYZ model with decoherency ...
F. Mirmasoudi, S. Ahadpour
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