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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 coupling between two dipoles may cause … See more
The integrability is underpinned by the existence of large symmetry algebras for the different models. For the XXX case this is the 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 … 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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Classical XY model - Wikipedia
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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 …
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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Observation of the Ground-State Geometric Phase in a …
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 …
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 …
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, …
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 …
WebAbstract. The quantum Fisher information matrix provides us with a tool to determine the precision, in any multiparametric estimation protocol, through quantum Cramér–Rao …
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 …
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 region in its ground …
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 …
Quantum Fisher information matrix in Heisenberg XY model
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 …
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 …
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 …
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 …
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 · Quantum Heisenberg XY model. 1. Introduction. Quantum entanglement, as a special type of quantum correlations, is a key ingredient in quantum information science …
Observation of the ground-state geometric phase in a heisenberg …
WebHere we report the first experimental study using the geometric phase as a topological test of quantum transitions of the ground state in a Heisenberg XY spin model. Using NMR …
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 …
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