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The derivation of determinant representations for the space-, time-, and temperature-dependent correlation functions of the impenetrable Gaudin-Yang model in the presence of a trapping potential is presented. These representations are valid…

量子气体 · 物理学 2025-08-05 Ovidiu I. Patu

The problem of deriving a gradient flow structure for the porous medium equation which is {\em thermodynamic}, in that it arises from the large deviations of some microscopic particle system, is studied. To this end, a rescaled zero-range…

概率论 · 数学 2025-03-25 Benjamin Gess , Daniel Heydecker

A derivation of the Boltzmann equation from the Liouville equation by the use of the Grad limiting procedure in a finite volume is proposed. We introduce two scales of space-time: macro- and microscale and use the BBGKY hierarchy and the…

数学物理 · 物理学 2013-04-24 A. S. Trushechkin

Heisenberg's uncertainty principle has recently led to general measurement uncertainty relations for quantum systems: incompatible observables can be measured jointly or in sequence only with some unavoidable approximation, which can be…

量子物理 · 物理学 2017-06-27 Alberto Barchielli , Matteo Gregoratti , Alessandro Toigo

We find that the ambiguity term of approximate Killing vector field is responsible for the entropy production term. Without the ambiguity term, pure Einstein theory and $f(R)$ satisfy the relation of thermodynamic equilibrium. Considering…

高能物理 - 理论 · 物理学 2011-06-30 Wei Gu , Rong-Xin Miao , Guang Wu

In hydrodynamics the existence of an entropy current with non-negative divergence is related to the existence of a time-independent solution in a static background. Recently there has been a proposal for how to construct an entropy current…

高能物理 - 理论 · 物理学 2015-06-19 Sayantani Bhattacharyya

Boltzmann's struggle with a derivation of the Second Law of Thermodynamics is sketched. So is his first derivation of the connection between entropy and probability in 1877. Planck's derivation and quantum mechanical modifications of…

物理学史与哲学 · 物理学 2008-07-11 E. G. D. Cohen

The weak law of large numbers implies that, under mild assumptions on the source, the Renyi entropy per produced symbol converges (in probability) towards the Shannon entropy rate. This paper quantifies the speed of this convergence for…

信息论 · 计算机科学 2017-05-01 Maciej Skorski

The principal methods for the definition of thermodynamic entropy are discussed with special reference to those developed by Carath\'eodory, the Keenan School, Lieb and Yngvason, and the present authors. An improvement of the latter method…

数学物理 · 物理学 2014-03-25 Enzo Zanchini , Gian Paolo Beretta

Uncertainty relations provide constraints on how well the outcomes of incompatible measurements can be predicted, and, as well as being fundamental to our understanding of quantum theory, they have practical applications such as for…

量子物理 · 物理学 2013-05-30 Patrick J. Coles , Roger Colbeck , Li Yu , Michael Zwolak

Based on a generalized local Kolmogorov-Hill equation expressing the evolution of kinetic energy integrated over spheres of size $\ell$ in the inertial range of fluid turbulence, we examine a possible definition of entropy and entropy…

流体动力学 · 物理学 2024-04-22 H. Yao , T. A. Zaki , C. Meneveau

We extend entropy production to a deeply quantum regime involving noncommuting conserved quantities. Consider a unitary transporting conserved quantities ("charges") between two systems initialized in thermal states. Three common formulae…

量子物理 · 物理学 2024-10-01 Twesh Upadhyaya , William F. Braasch, , Gabriel T. Landi , Nicole Yunger Halpern

A recently introduced nonlinear Fokker-Planck equation, derived directly from a master equation, comes out as a very general tool to describe phenomenologically systems presenting complex behavior, like anomalous diffusion, in the presence…

统计力学 · 物理学 2009-11-13 Veit Schwammle , Evaldo M. F. Curado , Fernando D. Nobre

Thermodynamic characteristics of the radiation of condensed combustion products presented in the form of agglomerates of metal-oxide nanoparticles demonstrate deviations from the classical Planck's law. We propose to interpret these…

等离子体物理 · 物理学 2022-03-29 G. S. Dragan , V. V. Kutarov , A. Y. Bekshaev

A picture for thermodynamics of the glassy state is introduced. It assumes that one extra parameter, the effective temperature, is needed to describe the glassy state. This explains the classical paradoxes concerning the Ehrenfest relations…

无序系统与神经网络 · 物理学 2009-10-31 Th. M. Nieuwenhuizen

A generalization of the thermodynamic uncertainty relations is proposed. It is done by introducing of an additional term proportional to the interior energy into the standard thermodynamic uncertainty relation that leads to existence of the…

高能物理 - 理论 · 物理学 2009-11-10 A. E. Shalyt-Margolin , A. Ya. Tregubovich

We introduce a class of random mechanical systems called random billiards to study the problem of quantifying the irreversibility of nonequilibrium macroscopic systems. In a random billiard model, a point particle evolves by free motion…

数学物理 · 物理学 2021-01-11 Timothy Chumley , Renato Feres

The new estimates of the conditional Shannon entropy are introduced in the framework of the model describing a discrete response variable depending on a vector of d factors having a density w.r.t. the Lebesgue measure in R^d. Namely, the…

统计理论 · 数学 2018-04-25 Alexander Bulinski , Alexey Kozhevin

Uncertainty relations for a pair of arbitrary measurements and for a single measurement are posed in the form of inequalities using the Renyi entropies. The formulation deals with discrete observables. Both the relations with…

量子物理 · 物理学 2008-07-21 A. E. Rastegin

The classical Density Functional Theory (DFT) is introduced as an application of entropic inference for inhomogeneous fluids at thermal equilibrium. It is shown that entropic inference reproduces the variational principle of DFT when…

统计力学 · 物理学 2021-09-14 Ahmad Yousefi , Ariel Caticha