Grand-canonical partition function of a two-dimensional Hubbard model
نویسندگان
چکیده
منابع مشابه
Nonextensive thermodynamics of the two - site Hubbard model : Grand - canonical ensembles 1
We have discussed thermodynamical and magnetic properties of the grand-canonical ensembles of the half-filled two-site Hubbard model within the framework of the nonextensive statistics (NES). For relating the physical temperature T to the Lagrange multiplier β, two methods have been adopted: T = 1/k B β in the method A [Tsallis et al. Physica A 261 (1998) 534], and T = c q /k B β in the method ...
متن کاملNonextensive thermodynamics of the two-site Hubbard model: Grand-canonical ensembles
We have discussed thermodynamical and magnetic properties of the grandcanonical ensembles of the half-filled, two-site Hubbard model within the framework of the nonextensive statistics (NES). For relating the physical temperature T to the Lagrange multiplier β, two methods have been adopted: T = 1/kBβ in the method A [Tsallis et al. Physica A 261 (1998) 534], and T = cq/kBβ in the method B [Abe...
متن کاملNonextensive thermodynamics of the two - site Hubbard model . II . Grand - canonical ensembles
We have discussed thermodynamical and magnetic properties of the grand-canonical ensembles of the half-filled two-site Hubbard model within the framework of the nonextensive statistics (NES). For relating the physical temperature T to the Lagrange multiplier β, two methods have been adopted: T = 1/k B β in the method A [Tsallis et al. Physica A 261 (1998) 534], and T = c q /k B β in the method ...
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The string susceptibility exponents of dynamically triangulated 2-dimensional surfaces with various topologies, such as a sphere, torus and double-torus, were calculated by the grand-canonical Monte Carlo method. These simulations were made for surfaces coupled to d-Ising spins (d=0,1,2,3,5). In each simulation the area of surface was constrained to within 1000 to 3000 of triangles, while maint...
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by analytical theories [1,2], where h is the number of handles of the 2-dimensional surface, and c is the central charge of matter fields coupled to the surface. When the dynamical triangulation (DT) recipe [3] is adopted to generate random surfaces, it becomes possible to simulate the discretized 2dimensional gravity numerically. In order to measure the exponent γ with any topology, we introdu...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1992
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.46.469