Results 31 to 40 of about 764,047 (274)

Joint multifractal analysis based on the partition function approach: analytical analysis, numerical simulation and empirical application

open access: yesNew Journal of Physics, 2015
Many complex systems generate multifractal time series which are long-range cross-correlated. Numerous methods have been proposed to characterize the multifractal nature of these long-range cross correlations.
Wen-Jie Xie   +4 more
doaj   +1 more source

A statistical mechanical approach to restricted integer partition functions

open access: yes, 2018
The main aim of this paper is twofold: (1) Suggesting a statistical mechanical approach to the calculation of the generating function of restricted integer partition functions which count the number of partitions --- a way of writing an integer as a sum ...
Dai, Wu-Sheng, Zhou, Chi-Chun
core   +1 more source

The Canonical Partition Function for Quons [PDF]

open access: yes, 1994
We calculate the canonical partition function $Z_N$ for a system of $N$ free particles obeying so-called `quon' statistics where $q$ is real and satisfies $|q|
Arik   +28 more
core   +2 more sources

Supersymmetric partition function hierarchies and character expansions

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We construct the supersymmetric $$\beta $$ β and (q, t)-deformed Hurwitz–Kontsevich partition functions through W-representations and present the corresponding character expansions with respect to the Jack and Macdonald superpolynomials, respectively ...
Rui Wang   +3 more
doaj   +1 more source

On the Potts model partition function in an external field

open access: yes, 2012
We study the partition function of Potts model in an external (magnetic) field, and its connections with the zero-field Potts model partition function. Using a deletion-contraction formulation for the partition function Z for this model, we show that it ...
A.D. Sokal   +38 more
core   +2 more sources

Nonmonotonic pressure as a function of the density in a fluid without attractive forces

open access: yesCondensed Matter Physics, 2013
A simple result for the pressure of a hard sphere fluid that was developed many years ago by Rennert is extended in a straightforward manner by adding additional terms that are of the same form as Rennert's formula. The resulting expression is moderately
D. Henderson
doaj   +1 more source

Flow polytopes and the Kostant partition function [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We establish the relationship between volumes of flow polytopes associated to signed graphs and the Kostant partition function. A special case of this relationship, namely, when the graphs are signless, has been studied in detail by Baldoni and Vergne ...
Karola Mészáros, Alejandro H. Morales
doaj   +1 more source

S-duality in Abelian gauge theory revisited

open access: yes, 2011
Definition of the partition function of U(1) gauge theory is extended to a class of four-manifolds containing all compact spaces and certain asymptotically locally flat (ALF) ones including the multi-Taub--NUT spaces. The partition function is calculated
Besse   +25 more
core   +1 more source

Topological strings and 5d T_N partition functions [PDF]

open access: yes, 2014
We evaluate the Nekrasov partition function of 5d gauge theories engineered by webs of 5-branes, using the refined topological vertex on the dual Calabi-Yau threefolds. The theories include certain non-Lagrangian theories such as the T_N theory.
Hayashi, Hirotaka   +2 more
core   +3 more sources

A partition function estimator

open access: yesThe Journal of Chemical Physics
We propose an estimator that allows us to calculate the value of a simple system’s partition function using finite sampling. The core idea is to neglect the contribution from high energy microstates, which are difficult to be sampled properly, and then calculate a volume correction term to compensate for this.
Ying-Chih Chiang   +2 more
openaire   +3 more sources

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