Articles with "ising chain" as a keyword



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Thermodynamics of the Spin-1/2 Heisenberg–Ising Chain at High Temperatures: a Rigorous Approach

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Published in 2018 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-020-03749-6

Abstract: This work develops a rigorous setting allowing one to prove several features related to the behaviour of the Heisenberg–Ising (or XXZ) spin-1/2 chain at finite temperature T . Within the quantum inverse scattering method the… read more here.

Keywords: thermodynamics; heisenberg ising; spin heisenberg; ising chain ... See more keywords

Sharp entanglement thresholds in the logarithmic negativity of disjoint blocks in the transverse-field Ising chain

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Published in 2018 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aad9ba

Abstract: Entanglement has developed into an essential concept for the characterization of phases and phase transitions in ground states of quantum many-body systems. In this work, we use the logarithmic negativity to study the spatial entanglement… read more here.

Keywords: disjoint blocks; ising chain; logarithmic negativity; field ising ... See more keywords

Fidelity and criticality of a quantum Ising chain with long-range interactions

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Published in 2018 at "Physical Review A"

DOI: 10.1103/physreva.98.023607

Abstract: We study the criticality of long-range quantum ferromagnetic Ising chain with algebraically decaying interactions $1/r^{\alpha}$ via the fidelity susceptibility based on the exact diagonalization and the density matrix renormalization group techniques. We find that critical… read more here.

Keywords: quantum; range; ising chain; long range ... See more keywords

Observation of E8 particles in an Ising chain antiferromagnet

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.220411

Abstract: Near the transverse-field-induced quantum critical point of the Ising chain, an exotic dynamic spectrum consisting of exactly eight particles was predicted, which is uniquely described by an emergent quantum integrable field theory with the symmetry… read more here.

Keywords: ising chain; chain; mathrm; chain antiferromagnet ... See more keywords

Magnetic Bloch oscillations in a non-Hermitian quantum Ising chain

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Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.109.104312

Abstract: We investigate the impacts of an imaginary transverse field on the dynamics of magnetic domain walls in a quantum Ising chain. We show that an imaginary field plays a similar role as a real transverse… read more here.

Keywords: magnetic bloch; quantum ising; bloch oscillations; ising chain ... See more keywords

Magnetization oscillations in a periodically driven transverse field Ising chain

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Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.110.195101

Abstract: We investigate the nonequilibrium dynamics of the magnetization in an Ising chain subjected to a slowly rotating transverse field. The magnetization oscillations are found to be explained by the contributions from different particle excitations in… read more here.

Keywords: magnetization oscillations; ising chain; magnetization; particle ... See more keywords

Residual entropy of the dilute Ising chain in a magnetic field.

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Published in 2022 at "Physical review. E"

DOI: 10.1103/physreve.106.054111

Abstract: The properties of the ground state of the simplest frustrated system, the dilute Ising chain in a magnetic field, are rigorously investigated over the entire range of concentrations of charged nonmagnetic impurities. Analytical methods are… read more here.

Keywords: dilute ising; ising chain; field; residual entropy ... See more keywords

Pseudotransitions in a dilute Ising chain.

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Published in 2024 at "Physical review. E"

DOI: 10.1103/physreve.110.044118

Abstract: This study provides a comprehensive analysis of the ground state and thermodynamic properties of a spin-pseudospin chain representing a model of a one-dimensional dilute magnet with two types of nonmagnetic charged impurities. For this purpose,… read more here.

Keywords: ising chain; dilute ising; pseudotransitions dilute; phase ... See more keywords

Energy spectrum and quantum phase transition of the coupled single spin and an infinitely coordinated Ising chain

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Published in 2025 at "Beilstein Journal of Nanotechnology"

DOI: 10.3762/bjnano.16.117

Abstract: In this work we consider a spin model composed of a single spin and connected to an infinitely coordinated Ising chain. Theoretical models of this type arise from various fields of theoretical physics, such as… read more here.

Keywords: ising chain; single spin; infinitely coordinated; coordinated ising ... See more keywords