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相关论文: The Folded Spin-1/2 XXZ Model: II. Thermodynamics …

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On the basis of Bethe ansatz solution of one dimensional Kondo model with electronic interaction, the thermodynamics equilibrium of the system in finite temperature is studied in terms of the strategy of Yang and Yang. The string hypothesis…

强关联电子 · 物理学 2009-10-31 Shi-Jian Gu , You-Quan Li , Hai-Qing Lin

The transport of magnetization is analyzed for the classical Heisenberg chain at and especially above the isotropic point. To this end, the Hamiltonian equations of motion are solved numerically for initial states realizing harmonic-like…

统计力学 · 物理学 2012-03-15 Robin Steinigeweg

A growing expertise to engineer, manipulate and probe different cold-atom analogs of electronic condensed matter systems allows to probe properties of exotic pairing. We study paired states of spin-imbalanced ultracold atomic system of…

其他凝聚态物理 · 物理学 2009-12-16 Paata Kakashvili , C. J. Bolech

Ground state and thermodynamics of geometrically frustrated spin-1/2 Ising-Heisenberg model on two different but topologically related triangles-in-triangles lattices is investigated in particular. A rigorous mapping based on generalized…

统计力学 · 物理学 2013-01-31 Jana Cisarova , Jozef Strecka

An unified thermodynamical framework based in the use of a generalized Massieu-Planck thermodynamic potential is proposed and a new formulation of Boltzmann-Gibbs Statistical Mechanics is established. Under this philosophy a generalization…

数学物理 · 物理学 2007-05-23 V. Garcia-Morales , J. Pellicer

In this paper, the impact of temperature fluctuations in the entanglement of two qubits described by a spin-1/2 XX model is studied. To describe the out-of-equilibrium situation, super-statistics is used with fluctuations given by a…

量子物理 · 物理学 2021-09-03 Jorge David Castaño-Yepes , Cristian Felipe Ramirez-Gutierrez

We investigate the thermodynamic limit of the inhomogeneous T-Q relation of the antiferromagnetic XXZ spin chain with antiperiodic boundary condition. It is shown that the contribution of the inhomogeneous term at the ground state can be…

数学物理 · 物理学 2018-10-18 Zhirong Xin , Yi Qiao , Kun Hao , Junpeng Cao , Wen-Li Yang , Kangjie Shi , Yupeng Wang

We study perfect fluid cosmological models with a constant equation of state parameter $\gamma$ in which there are two naturally defined time-like congruences, a geometrically defined geodesic congruence and a non-geodesic fluid congruence.…

广义相对论与量子宇宙学 · 物理学 2009-11-11 A. A. Coley , S. Hervik , W. C. Lim

We study statistical characterization of the many-body states in exactly solvable models with internal degrees of freedom. The models under consideration include the isotropic and anisotropic Heisenberg spin chain, the Hubbard chain, and a…

凝聚态物理 · 物理学 2009-10-28 Y. Hatsugai , M. Kohmoto , T. Koma , Y. -S. Wu , Comments

In this article we review the thermodynamics of liquids in the framework of the inherent structure formalism. We then present calculations of the distribution of the basins in the potential energy of a binary Lennard-Jones mixture as a…

软凝聚态物质 · 物理学 2009-10-31 F. Sciortino , W. Kob , P. Tartaglia

We consider an exactly solvable inhomogeneous Dicke model which describes an interaction between a disordered ensemble of two-level systems with single mode boson field. The existing method for evaluation of Richardson-Gaudin equations in…

统计力学 · 物理学 2017-04-03 W. V. Pogosov , D. S. Shapiro , L. V. Bork , A. I. Onishchenko

The formalism developed in the first paper of the series [arXiv:0901.1060] is applied to two thermodynamic systems: (i) of three global observables (the energy, the total electron number and the spin number), (ii) of one global observable…

化学物理 · 物理学 2013-10-28 Robert Balawender , Andrzej Holas

We study the real-time dynamics of the local energy density in the spin-1/2 XXZ chain starting from initial states with an inhomogeneous profile of bond energies. Numerical simulations of the dynamics of the initial states are carried out…

强关联电子 · 物理学 2011-12-16 Stephan Langer , Markus Heyl , Ian P. McCulloch , Fabian Heidrich-Meisner

We study a lattice-gas model of penetrable particles on a square-lattice substrate with same-site and nearest-neighbor interactions. Penetrability implies that the number of particles occupying a single lattice site is unlimited and the…

软凝聚态物质 · 物理学 2020-08-21 Derek Frydel , Yan Levin

We investigate the relation between the classical ergodicity and the quantum eigenstate thermalization in the fully connected Ising ferromagnets. In the case of spin-1/2, an expectation value of an observable in a single energy eigenstate…

统计力学 · 物理学 2017-07-20 Takashi Mori

We develop a series of molecular dynamics computer simulations of liquid water, performed with a polarizable potential model, to calculate the spinodal line and the curve of maximum density inside the metastable supercooled region. After…

软凝聚态物质 · 物理学 2009-11-11 P. Gallo , M. Minozzi , M. Rovere

Following the Bethe ansatz we determine the dynamical spectra of the one-dimensional supersymmetric t-J model. A series of fractionalized excitations are identified through two sets of Bethe numbers. Typical patterns in each set are found…

强关联电子 · 物理学 2026-03-27 Yunjing Gao , Jianda Wu

We consider hydrodynamic limits of interacting particles systems with open boundaries, where the exterior parameters change in a time scale slower than the typical relaxation time scale. The limit deterministic profiles evolve…

概率论 · 数学 2016-01-20 Anna De Masi , Stefano Olla

We analyze the dynamical nearest-neighbor and next-nearest-neighbor spin correlations in the 4-site and 8-site dynamical cluster approximation to the two-dimensional Hubbard model. Focusing on the robustness of these correlations at long…

强关联电子 · 物理学 2020-04-22 Philipp Werner , Xi Chen , Emanuel Gull

A picture for thermodynamics of the glassy state was introduced recently by us (Phys. Rev. Lett. {\bf 79} (1997) 1317; {\bf 80} (1998) 5580). It starts by assuming that one extra parameter, the effective temperature, is needed to describe…

无序系统与神经网络 · 物理学 2007-05-23 Th. M. Nieuwenhuizen