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相关论文: The lattice gas model with isospin-dependent inter…

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The liquid-gas phase transition in hot neutron-rich nuclear matter is investigated within a self-consistent thermal model using an isospin and momentum dependent interaction (MDI) constrained by the isospin diffusion data in heavy-ion…

核理论 · 物理学 2008-11-26 Jun Xu , Lie-Wen Chen , Bao-An Li , Hong-Ru Ma

We present a novel and efficient real space, semiclassical model of electric polarization with general applicability to any system in which screening plays an important role. This model includes the effects of both atomic and bond…

超导电性 · 物理学 2025-06-24 Nassim Derriche , George Sawatzky

Particle based methods such as the Discrete Element Method and the Lattice Spring Method may be used for describing the behaviour of isotropic linear elastic materials. However, the common bond models employed to describe the interaction…

计算工程、金融与科学 · 计算机科学 2021-07-06 Rahav Gowtham Venkateswaran , Ursula Kowalsky , Dieter Dinkler

We analyze the possible phase diagrams of a simple model for an associating liquid proposed previously. Our two-dimensional lattice model combines oreintati onal ice-like interactions and \"{}Van der Waals\"{} interactions which may be…

软凝聚态物质 · 物理学 2009-11-11 Vera B. Henriques , Nara Guisoni , Marco Aurelio Barbosa , Marcelo Thielo , Marcia C. Barbosa

We consider a 1D lattice gas model in which the atoms interact via an infinite number of cluster interactions within contiguous atomic chains plus the next nearest neighbor pairwise interaction. All interactions are of arbitrary strength.…

材料科学 · 物理学 2009-11-07 V. I. Tokar , H. Dreyssé

We observe the dissipative dynamics of a dense, strongly interacting gas of bosonic atom pairs in an optical lattice, controlling the strength of the two-body interactions over a wide parameter regime. We study how three-body losses…

量子气体 · 物理学 2020-10-14 M. J. Mark , S. Flannigan , F. Meinert , K. Jag-Lauber , J. P. D'Incao , A. J. Daley , H. -C. Nägerl

In the formation and evolution of compact stars, nuclear matter explores high thermal excursions and is the site of intense neutrino emission. Neutrino transport as well as structural properties of this matter depend on the presence of…

核理论 · 物理学 2008-11-26 P. Chomaz , C. Ducoin , F. Gulminelli , K. H. O. Hasnaoui , P. Napolitani

The one-dimensional Ising model with its connections to several physical concepts plays a vital role in comprehension of several principles, phenomena and numerical methods. The Hamiltonian of a coupled one-dimensional dissipative spin…

Equation of state of uncharged bosonic matter is studied within a field-theoretical approach in the mean-field approximation. Interaction of bosons is described by a scalar field $\sigma$ with a Skyrme-like potential which contains both…

高能物理 - 唯象学 · 物理学 2024-12-31 Leonid M. Satarov , Igor N. Mishustin , Horst Stoecker

We analyze the combined effect of the long range Coulomb (LRC) interaction and of surface energy on first order density-driven phase transitions in the presence of a compensating rigid background. We study mixed states formed by regions of…

强关联电子 · 物理学 2009-10-31 J. Lorenzana , C. Castellani , C. Di Castro

In spin-crossover materials, the volume of a molecule changes depending on whether it is in the high-spin (HS) or low-spin (LS) state. This change causes distortion of the lattice. Elastic interactions among these distortions play an…

材料科学 · 物理学 2009-11-13 Seiji Miyashita , Yusuké Konishi , Masamichi Nishino , Hiroko Tokoro , Per Arne Rikvold

We develop an improved Statistical Multifragmentation Model that provides the capability to calculate calorimetric and isotopic observables with precision. With this new model we examine the influence of nuclear isospin on the fragment…

核实验 · 物理学 2009-11-10 W. P. Tan , S. R. Souza , R. J. Charity , R. Donangelo , W. G. Lynch , M. B. Tsang

The mechanism of fusion hindrance, an effect preventing the synthesis of superheavy elements in the reactions of cold and hot fusion, is investigated using the Boltzmann-Uehling-Uhlenbeck equation, where Coulomb interaction is introduced. A…

核理论 · 物理学 2016-12-21 Martin Veselsky , Jozef Klimo , Yu-Gang Ma , Georgios A. Souliotis

We theoretically investigate the frictional drag induced by the Coulomb interaction between spa- tially separated massless and massive fermions at low temperatures. As a model system, we use a double-layer structure composed of a…

介观与纳米尺度物理 · 物理学 2012-09-20 Benedikt Scharf , Alex Matos-Abiague

We investigate the effect of the Coulomb interaction, $U_{cf}$, between the conduction and f electrons in the periodic Anderson model using the density-matrix renormalization-group algorithm. We calculate the excitation spectrum of the…

强关联电子 · 物理学 2014-09-26 I. Hagymasi , J. Solyom , O. Legeza

The equation of state and fluctuations of conserved charges in a strongly interacting medium under equilibrium conditions form the baseline upon which various possible scenarios in relativistic heavy-ion collision experiments are built.…

We report the first lattice QCD calculation of the glue spin in the nucleon. The lattice calculation is carried out with valence overlap fermions on 2+1 flavor DWF gauge configurations on four lattice spacings and four volumes including an…

高能物理 - 唯象学 · 物理学 2017-03-15 Yi-Bo Yang , Raza Sabbir Sufian , Andrei Alexandru , Terrence Draper , Michael J. Glatzmaier , Keh-Fei Liu , Yong Zhao

We analyze a microscopic decoherence model in which the total system is described as a spin gas. A spin gas consists of N classically moving particles with additional, interacting quantum degrees of freedom (e.g. spins). For various…

量子物理 · 物理学 2007-05-23 L. Hartmann , J. Calsamiglia , W. Dür , H. J. Briegel

We study the effects of lattice deformations on the Kagome spin ice, with Ising spins coupled by nearest neighbor exchange and long range dipolar interactions, in the presence of in-plane magnetic fields. We describe the lattice energy…

强关联电子 · 物理学 2013-11-27 F. A. Gómez Albarracín , D. C. Cabra , H. D. Rosales , G. L. Rossini

The Coulomb interaction between the two protons is included in the calculation of proton-deuteron elastic scattering, radiative proton-deuteron capture and two-body electromagnetic disintegration of ${}^3\mathrm{He}$. The hadron dynamics is…

核理论 · 物理学 2009-11-11 A. Deltuva , A. C. Fonseca , P. U. Sauer