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See all on WikipediaQuantum Heisenberg model - Wikipedia
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 … See more
For quantum mechanical reasons (see exchange interaction or Magnetism § Quantum-mechanical origin of magnetism), the dominant … See more
• Another important object is entanglement entropy. One way to describe it is to subdivide the unique ground state into a block (several sequential spins) and the environment (the rest … See more
Wikipedia text under CC-BY-SA license 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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- Studies of heisenberg xy model
Classical XY model - Wikipedia
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WEBThe purpose of this chapter is to focus on two models fundamental to the study of both 1d quantum systems and 2d classical systems. They are the XXZ chain (and its 2d …
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Entanglement in the Quantum Heisenberg XY model
WEBJan 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 …
- Author: Xiaoguang Wang
- Cite as: arXiv:quant-ph/0101013
- Publish Year: 2001
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 …
WEBtakes values on the unit circle the model is called the (classical) XY model or the rotator model. In the case of the unit sphere it is called the (classical) Heisenberg model. So …
Classical Heisenberg model - Wikipedia
WEBThe Classical Heisenberg model, developed by Werner Heisenberg, is the case of the n-vector model, one of the models used in statistical physics to model ferromagnetism, …
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 …
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 …
WEBAbstract. The quantum Fisher information matrix provides us with a tool to determine the precision, in any multiparametric estimation protocol, through quantum Cramér–Rao …
WEBHistorically, the isotropic interacting quantum spin chain, or Heisenberg model [16] was the first quantum integrable system, whose exact eigenstates were obtained through the …
Quantum correlations in the frustrated XY model on the …
WEBSep 25, 2023 · Abstract. We have investigated the spin-1/2 XY frustrated antiferromagnetic Heisenberg honeycomb model, which features an intermediate …
Quantum Fisher information matrix in Heisenberg XY model
WEBApr 16, 2019 · Quantum Fisher information matrix in Heisenberg XY model. Published: 16 April 2019. Volume 18, article number 163, ( 2019 ) Cite this article. Download PDF. L. …
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 …
Dynamics of two-qubit Heisenberg XY state: external magnetic
WEBSep 21, 2023 · Based on Milburn’s intrinsic decoherence model, a particular dynamics for the anisotropic two-qubit Heisenberg XY model has been found to explore the …
Spin transport in a tunable Heisenberg model realized with …
WEBDec 17, 2020 · Here we realize the Heisenberg model describing spins on a lattice, with fully adjustable anisotropy of the nearest-neighbour spin–spin couplings (called the XXZ …
Long-range-ordered phase in a quantum Heisenberg chain with ...
WEBJul 6, 2021 · Employing both analytical spin-wave theory as well as numerical density-matrix renormalization group calculations, we find that there is a large parameter regime where …
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 …
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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 …
A quantum critical Bose gas of magnons in the quasi-two ... - Nature
WEB1 day ago · The honeycomb S = 1/2 Heisenberg antiferromagnet YbCl3 exhibits a transition to a fully polarized state at a relatively low in-plane magnetic field. ... the lack of an …
[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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