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- The XY model explains the behavior of materials whose spins move only on a plane consisting of the x and y axis. Spin behavior can dramatically change upon slicing down the magnet to its thinnest level, as 2-D materials are more sensitive to temperature fluctuations, which can destroy the pattern of well-aligned spins.
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WebHeisenberg chain, known as the XY model, which was originally studied in great detail in [3]. The XY model, which can be obtained from the Heisenberg Hamiltonian by turning …
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The quantum Heisenberg model, developed by Werner Heisenberg, is a statistical mechanical model used in the study of critical points and phase transitions of magnetic systems, in which the spins of the magnetic systems are treated quantum mechanically. It is related to the prototypical Ising model, where at each site of a lattice, a spin represents a microscopic magnetic dipole to which the magnetic moment is either up or down. Except the coupling between magnetic dipole …
Wikipedia · Text under CC-BY-SA licenseWebJan 3, 2001 · We study the entanglement in the quantum Heisenberg XY model in which the so-called W entangled states can be generated for 3 or 4 qubits. By the concept of …
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WebThe XXZ model is a deformation of the Heisenberg model breaking the SU(2) symmetry down to a U(1) subgroup. The degrees of freedom of the XY model are classical xed …
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Web2 XY model In the classical xy-model, the variables are two-dimensional unit vectors ~s i on each lattice site, equivalent to an angle θ. This model is a limiting case of the …
WebDec 10, 2010 · Here we report the first experimental study using the geometric phase as a topological test of quantum transitions of the ground state in a Heisenberg X Y spin …
WebApr 16, 2019 · In this work, we have studied multiparametric estimation strategy in quantum metrology by focusing on two variants of the Heisenberg XY model. The first one …
WebSep 25, 2023 · Abstract. We have investigated the spin-1/2 XY frustrated antiferromagnetic Heisenberg honeycomb model, which features an intermediate region in its ground …
WebWe investigate the thermal entanglement in the two-qubit isotropic XY model with a magnetic field and in the anisotropic XY model, and find that the thermal entanglement …
Quantum coherence and its distribution in a two-dimensional …
WebAug 15, 2022 · Quantum coherence and its distribution in a two-dimensional Heisenberg XY model. MengQin, YanbiaoLi, ZhongBai, XiaoWang. Show more. Add to Mendeley. …
Webis addressed for the quantum Heisenberg XY model. Two distinct situations are considered. The first one concerns the anisotropic XYmodel and the second situation …
WebAbstract. The quantum Fisher information matrix provides us with a tool to determine the precision, in any multiparametric estimation protocol, through quantum Cramér–Rao …
Magnetic excitations in the one-dimensional Heisenberg–Ising …
WebJan 13, 2023 · Abstract. The one dimensional (1D) spin-1/2 Heisenberg–Ising model, a prototype quantum many-body system, has been intensively studied for many years.
Quantum coherence of the Heisenberg spin models with ... - Nature
WebOct 24, 2017 · Quantum coherence of the Heisenberg spin models with Dzyaloshinsky-Moriya interactions. Chandrashekar Radhakrishnan, Manikandan Parthasarathy, Segar …
A comparative study of local quantum Fisher information and local ...
WebJul 8, 2019 · To analyze the behaviors of these quantum correlation quantifiers, we have considered two variants of the Heisenberg XY model. The first one concerns the …
WebFeb 6, 2018 · This is the accepted manuscript made available via CHORUS. The article has been published as: Relationship between the transverse-field Ising model and the XY …
2-D magnetism reaches a new milestone - Phys.org
WebJan 21, 2019 · The XY model explains the behavior of materials where the spins are free to move only on the x and y axis, and the Heisenberg model is about spins that point in …
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Quantum coherence and its distribution in a two-dimensional …
WebAug 15, 2022 · This study aims to contribute to this field by exploring a two-dimensional XY model. We will investigate the quantum critical phenomena in the two-dimensional …
WebTwo special Heisenberg XY models are considered. The first one concerns the anisotropic XY model in which the temperature Tand the anisotropic parameter γare estimated. The …
Exact solution of the Heisenberg XX model with twisted boundary ...
WebSep 7, 2020 · Exact solution. Twisted boundary. Heisenberg XX model. 1. Introduction. The Heisenberg spin system has been studied widely in statistical physics and mathematical …
[2301.11917] Everything is a quantum Ising model - arXiv.org
WebJan 27, 2023 · This leads to striking correspondences, such as the spin-1/2 XY and Heisenberg models arising from the large-field limit of 3-state and 4-state Potts models, …
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