Articles with "quantum ising" as a keyword



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Uniform Bound of the Entanglement for the Ground State of the Quantum Ising Model with Large Transverse Magnetic Field

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Published in 2020 at "Journal of Statistical Physics"

DOI: 10.1007/s10955-020-02501-7

Abstract: We consider the ground state of the quantum Ising model with transverse field h in one dimension in a finite volume $$\begin{aligned} \Lambda {_{m}:=\{-m,-m+1,\ldots ,m+L\}.} \end{aligned}$$ Λ m : = { - m , -… read more here.

Keywords: quantum ising; state quantum; uniform bound; ising model ... See more keywords
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Dynamics of longitudinal magnetization in transverse-field quantum Ising model: from symmetry-breaking gap to Kibble–Zurek mechanism

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Published in 2020 at "Journal of Statistical Mechanics: Theory and Experiment"

DOI: 10.1088/1742-5468/ab609a

Abstract: We show that the symmetry-breaking gap of the quantum Ising model in the transverse field can be extracted from free evolution of the longitudinal magnetization taking place after a gradual quench of the magnetic field.… read more here.

Keywords: breaking gap; field; quantum ising; longitudinal magnetization ... See more keywords
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Dynamics after quenches in one-dimensional quantum Ising-like systems

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.102.054444

Abstract: We study the out-of-equilibrium dynamics of one-dimensional quantum Ising-like systems, arising from sudden quenches of the Hamiltonian parameter $g$ driving quantum transitions between disordered and ordered phases. In particular, we consider quenches to values of… read more here.

Keywords: quantum ising; dimensional quantum; ising like; one dimensional ... See more keywords
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Out-of-time-ordered correlators in a quantum Ising chain

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Published in 2018 at "Physical Review B"

DOI: 10.1103/physrevb.97.144304

Abstract: Out-of-time-ordered correlators (OTOC) have been proposed to characterize quantum chaos in generic systems. However, they can also show interesting behavior in integrable models, resembling the OTOC in chaotic systems in some aspects. Here we study… read more here.

Keywords: chain; quantum ising; time ordered; time ... See more keywords
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Quantum critical behaviors and decoherence of weakly coupled quantum Ising models within an isolated global system.

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Published in 2022 at "Physical review. E"

DOI: 10.1103/physreve.107.014113

Abstract: We discuss the quantum dynamics of an isolated composite system consisting of weakly interacting many-body subsystems. We focus on one of the subsystems, S, and study the dependence of its quantum correlations and decoherence rate… read more here.

Keywords: system; quantum ising; quantum; global system ... See more keywords

Quantum Ising model on the frustrated square lattice.

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Published in 2019 at "Physical review. E"

DOI: 10.1103/physreve.99.012134

Abstract: We investigate the role of a transverse field on the Ising square antiferromagnet with first (J_{1}) and second (J_{2}) neighbor interactions. Using a cluster mean-field approach, we provide a telltale characterization of the frustration effects… read more here.

Keywords: ising model; model frustrated; phase boundaries; phase ... See more keywords
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Perfect thermal rectification in a many-body quantum Ising model.

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Published in 2019 at "Physical review. E"

DOI: 10.1103/physreve.99.032116

Abstract: This paper addresses a keystone problem for the progress of phononics: the proposal of efficient thermal diodes. Aiming the disclosure of an easy itinerary for the building of a heat rectifier, I investigate unsophisticated systems… read more here.

Keywords: body quantum; many body; perfect thermal; rectification ... See more keywords
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Localization and Melting of Interfaces in the Two-Dimensional Quantum Ising Model.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.120601

Abstract: We study the nonequilibrium evolution of coexisting ferromagnetic domains in the two-dimensional quantum Ising model-a setup relevant in several contexts, from quantum nucleation dynamics and false-vacuum decay scenarios to recent experiments with Rydberg-atom arrays. We… read more here.

Keywords: quantum ising; two dimensional; quantum; dimensional quantum ... See more keywords
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Thermodynamic properties and phase diagrams of spin-1 quantum Ising systems with three-spin interactions

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Published in 2019 at "Modern Physics Letters B"

DOI: 10.1142/s0217984920500013

Abstract: The spin-1 quantum Ising systems with three-spin interactions on two-dimensional triangular lattices are studied by mean-field method. The thermal variations of order parameters and phase diagrams ... read more here.

Keywords: systems three; spin quantum; spin interactions; ising systems ... See more keywords