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Statistical mechanical models with local interactions in $d>1$ dimension can be regarded as $d=1$ dimensional models with regular long range interactions. In this paper we study the critical properties of Ising models having $V$ sites, each…

统计力学 · 物理学 2016-08-31 R. T. Scalettar

We report the results of a numerical investigation of static and dynamic critical behavior of the anisotropic easy-plane Heisenberg model which is used as a model for iron-vanadium magnetic superlattices. Models of iron-vanadium magnetic…

统计力学 · 物理学 2014-12-01 Akai K. Murtazaev , Vadim A. Mutailamov

In this paper, we address the possibility of generalising the standard analysis of thermal contact between a sample system and a heat bath, by including long range interactions between them. As a concrete example, both system and bath are…

统计力学 · 物理学 2007-05-23 Ramandeep S. Johal , Renuka Rai

We analyze, in general terms, the evolution of energy levels in quantum mechanics, as a function of a coupling parameter, and demonstrate the possibility of level crossings in systems described by irreducible matrices. In long-range…

量子物理 · 物理学 2017-02-15 C. M. Adhikari , V. Debierre , U. D. Jentschura

Monte Carlo simulations of the short-time dynamic behavior are reported for three-dimensional Heisenberg model with long-range correlated disorder at criticality, in the case corresponding to linear defects. The static and dynamic critical…

无序系统与神经网络 · 物理学 2012-10-05 Pavel V. Prudnikov , Maria A. Medvedeva

Driven by novel approaches and computational techniques, second-principles atomic potentials are nowadays at the forefront of computational materials science, enabling large-scale simulations of material properties with…

材料科学 · 物理学 2025-10-10 Miao Yu , Fernando Gómez-Ortiz , Louis Bastogne , Jin-Zhu Zhao , Philippe Ghosez

The thermodynamic properties of a classical d-dimensional spin-S Heisenberg ferromagnet, with long-range interactions decaying as $r^{-p}$ and in the presence of an external magnetic field, is investigated by means of the spectral density…

统计力学 · 物理学 2015-06-24 A. Cavallo , F. Cosenza , L. De Cesare

It is well know that systems with an interaction decaying as a power of the distance may have critical exponents that are different from those of short-range systems. The boundary between long-range and short-range is known, however the…

统计力学 · 物理学 2014-12-30 Edouard Brezin , Giorgio Parisi , Federico Ricci-Tersenghi

The expectation value of the Hamiltonian using a model wave function is widely used to estimate the eigenvalues of electronic Hamiltonians. We explore here a modified formula for models based on long-range interaction. It scales differently…

化学物理 · 物理学 2024-06-13 Anthony Scemama , Andreas Savin

The effect of scattering with non-zero impact parameters between consituents in relativistic heavy ion collisions is investigated. In solving the relativistic Boltzmann equation, the characteristic range of the collision kernel is varied…

We consider the model for the distribution of a long homopolymer in a potential field. The typical shape of the polymer depends on the temperature parameter. We show that at a critical value of the temperature the transition occurs from a…

概率论 · 数学 2009-02-18 M. Cranston , L. Koralov , S. Molchanov , B. Vainberg

Based on large-scale density matrix renormalization group techniques, we investigate the critical behaviors of quantum three-state Potts chains with long-range interactions. Using fidelity susceptibility as an indicator, we obtain a…

强关联电子 · 物理学 2023-05-31 Xue-Jia Yu , Chengxiang Ding , Limei Xu

We discuss results on the dynamics of thermalization for a model with Gaussian interactions between two classical many-body systems trapped in external harmonic potentials. Previous work showed an approximate, power-law scaling of the…

统计力学 · 物理学 2022-05-19 Roberto Onofrio , Bala Sundaram

In this paper we discuss the relations between the exact shape of interparticle interactions in complex (dusty) plasmas and the dispersion relation of the longitudinal collective mode. Several representative repulsive potentials, predicted…

等离子体物理 · 物理学 2017-02-22 S. A. Khrapak , B. A. Klumov , H. M. Thomas

We study microcanonical lattice gas models with long range interactions, including power law interactions. We rigorously obtain a variational principle for the entropy. In a one dimensional example, we find a first order phase transition by…

数学物理 · 物理学 2017-03-08 David Aristoff , Lingjiong Zhu

We study the behavior of systems in which the interaction contains a long-range component that does not dominate the critical behavior. Such a component is exemplified by the van der Waals force between molecules in a simple liquid-vapor…

统计力学 · 物理学 2009-10-31 Daniel Dantchev , Joseph Rudnick

In contrast to interferometry-based quantum sensing, where interparticle interaction is detrimental, quantum many-body probes exploit such interactions to achieve quantum-enhanced sensitivity. In most of the studied quantum many-body…

量子物理 · 物理学 2023-11-06 Rozhin Yousefjani , Xingjian He , Abolfazl Bayat

We consider a model for the distribution of a long homopolymer with a zero-range potential at the origin in $\mathbb{R}^3$. The distribution can be obtained as a limit of Gibbs distributions corresponding to properly normalized potentials…

概率论 · 数学 2009-06-17 M. Cranston , L. Koralov , S. Molchanov , B. Vainberg

We study the critical breakdown of two-dimensional quantum magnets in the presence of algebraically decaying long-range interactions by investigating the transverse-field Ising model on the square and triangular lattice. This is achieved…

强关联电子 · 物理学 2019-01-09 S. Fey , Sebastian C. Kapfer , K. P. Schmidt

Quantum Heisenberg ferromagnets with long-range interactions decayin as $1/r^p$ in one and two dimensions are investigated by means of the Green's function method. It is shown that there exists a finite-temperature phase transition in the…

凝聚态物理 · 物理学 2009-10-28 Hiroki Nakano , Minoru Takahashi