Correlation between Quantum Entanglement and Quantum Coherence in the Case of XY Spin Chains with the Dzyaloshinskii–Moriya Interaction

Gombar, Sonja; Mali, Petar; Pantić, M.; Pavkov-Hrvojević, Milica; Radošević, Slobodan

doi:10.1134/s1063776120060114

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Two-qubit States As Reduced Density Matrices Of Many-body Sy...1

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2023

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“…It is known [36,59,60,61] that the two-qubit reduced density matrix of one-dimensional XY chain has block-diagonal or X structures. Further, it was shown in [38] that the reduced density matrix of the nuclear spin pairs in a gas of N molecules or atoms (for example, 129 Xe) in closed nanopore which is in a strong magnetic field has the CS structure.…”

Section: Two-qubit States As Reduced Density Matrices Of Many-body Sy...mentioning

confidence: 99%

Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions

Fedorova,

Yurischev

2021

Preprint

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Using group-theoretical approach we found a family of four nineparameter quantum states for the two-spin-1/2 Heisenberg system in an external magnetic field and with multiple components of Dzyaloshinsky-Moriya (DM) and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions. Exact analytical formulas are derived for the entanglement of formation for the quantum states found. The influence of DM and KSEA interactions on the behavior of entanglement and on the shape of disentangled region is studied. A connection between the two-qubit quantum states and the reduced density matrices of many-particle systems is discussed.

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Section: Two-qubit States As Reduced Density Matrices Of Many-body Sy...mentioning

confidence: 99%

Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions

Fedorova,

Yurischev

2021

Preprint

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Aesthetics, Causality, and Operative Wonder

Onishi

2023

Weird Wonder in Merleau-Ponty, Object-Oriented Ontology, and New Materialism

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Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions

Fedorova

Yurischev

2021

Quantum Inf Process

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Correlation between Quantum Entanglement and Quantum Coherence in the Case of XY Spin Chains with the Dzyaloshinskii–Moriya Interaction

Cited by 3 publications

References 65 publications

Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions

Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions

Aesthetics, Causality, and Operative Wonder

Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions

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