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WEBFeb 6, 2018 · In this paper, we will focus on employing the rotating-wave approximation to go from the transverse- eld Ising model to the XY model, which is given by the following …
- Author: Thomas G. Kiely, J. K. Freericks
- Publish Year: 2018
- j j − B σz (1) <j where σα is the Pauli spin matrix at site j in spatial direction α. The spin-spin interactions are given by Jjj for the interaction between spins at sites j and j and will be called the spin-exchange (SE) piece of the Hamiltonian SE TFI, while the magnetic-field strength in the z direction is given by B (and the magnetic-...
Classical XY model - Wikipedia
• The existence of the thermodynamic limit for the free energy and spin correlations were proved by Ginibre, extending to this case the Griffiths inequality.
• Using the Griffiths inequality in the formulation of Ginibre, Aizenman and Simon proved that the two point spin correlation of the ferromagnetics XY model in dimension D, coupling J > 0 and inverse temperature β is dominated by (i.e. has an upper boundWikipedia · Text under CC-BY-SA license- Estimated Reading Time: 9 mins
WEBIsing (Z. Physik, 31, 253, 1925) introduced a model consisting of a lattice of \spin" variables si, which can only take the values +1 (") and 1 (#). Every spin interacts with its nearest …
WEBThe quantum XY spin chain is a one-dimensional statistical mechanics model used to understand the behavior of materials through their microscopic quantum spins and their …
Relationship between the transverse-field Ising model and the …
WEBFeb 6, 2018 · This penalty can be employed to relate the transverse-field Ising model in a large field to the X Y model in no field (when measurements are performed at the proper …
WEBSep 21, 2023 · We investigate the dynamical critical behavior of the two- and three-dimensional Ising models with Glauber dynamics in equilibrium. In contrast to the usual …
Relationship between the transverse-field Ising model and the XY …
WEBNov 13, 2017 · Relationship between the transverse-field Ising model and the XY model via the rotating-wave approximation. In a large transverse field, there is an energy cost …
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Abstract - arXiv.org
WEBthe XY/Ising spin chain in Eq. 3 into a quadratic spinless fermion model: Hb= − XL j=1 (Jx j + J y)ˆc †ˆc +1 + (J x j −J )ˆccˆ + H.c. + XL j=1 h j(2ˆn −1) , (4) where ˆc† j creates a …
Ising model - Wikipedia
WEBThe Ising model (or Lenz–Ising model), named after the physicists Ernst Ising and Wilhelm Lenz, is a mathematical model of ferromagnetism in statistical mechanics. The model …
WEBThe XY model, which can be obtained from the Heisenberg Hamiltonian by turning ofi the coupling between z spin components, reduces to a free theory of spinless fermions …
WEBIsing, 2d XY, and 3d Ising models. These examples respectively illustrate the general features of the classical/quantum correspondence, a Berry phase term, and the role of …
Ising Model - an overview | ScienceDirect Topics
WEBThe Ising model is a model of a classical ferromagnet on a lattice first introduced in 1925 in the one-dimensional case by E Ising. At each lattice site there is a “spin” variable σ, …
Engineering Ising-XY spin-models in a triangular lattice using
WEBSep 1, 2013 · Deeper insight into complex magnetic behaviour and the nature of magnetic phase transitions can be obtained from, for example, model systems of coupled XY and …
WEBIn this extended summary of a seminar presentation, the one- and two-dimensional Ising models are presented and main aspects such as phase transitions are discussed. …
Obtaining the Ising and XY model from the XYZ $O(3)$ model
WEBNov 8, 2023 · You cannot get an effective Ising or XY model by just manipulating the terms in your Hamiltonian. The way to get an Ising model is to add a strong term that …
Classical Lattice Spin Models: Ising Model, XY Model - YouTube
WEBClassical Lattice Spin Models: Ising Model, XY Model. Speaker: Wemer KRAUTH (ENS, Paris, France) School in Computational Condensed Matter Physics: From Atomistic …
Reducing herbivory in mixed planting by genomic prediction of …
WEB1 day ago · The analogy of the Ising model suggests that the different signs of \({\beta }_{2}\) modulate phenotypic values under monoculture or a mixture of the two genotypes …
[2301.11917] Everything is a quantum Ising model - arXiv.org
WEBJan 27, 2023 · Everything is a quantum Ising model. This work shows that any k -local Hamiltonian of qubits can be obtained from a 4-state 'Ising' model with k -local diagonal …
What new features does the Heisenberg Model have compared …
WEBSep 15, 2016 · One of the main differences is that the Ising model lies on a discrete symmetry (the $Z_2$ symmetry) while the Heisenberg model lies on a continuous one …
Critical temperature difference between Ising and XY model
WEBIn particular, if $\beta_c^{XY}$ denotes the inverse temperature at which the Kosterlitz-Thouless phase transition occurs, then $\beta_c^{XY}\geq 2\beta_c^{I}$, where …
Statistical mechanics of the flexural Ising model in
WEB5 days ago · arXivLabs: experimental projects with community collaborators. arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on …
2D XY model - The Public's Library and Digital Archive
WEBOct 11, 2015 · In 2D XY model there are excitations with nontrivial topology - vortices and anti-vortices (marked by red and green squares). Under path-tracing around a vortex or …
Ising Model and XY Model - DocsLib
WEBThe Ising model is one of the simplest and most fundamental models of statistical mechanics. It can be used to describe such diverse phenomena as magnets; liquid/gas …
[2407.19531v2] Mahler measures, elliptic curves and $L
WEBJul 28, 2024 · This work establishes links between the Ising model and elliptic curves via Mahler measures. First, we reformulate the partition function of the Ising model on the …
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