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The physical variables of classical thermodynamics occur in conjugate pairs such as pressure/volume, entropy/temperature, chemical potential/particle number. Nevertheless, and unlike in classical mechanics, there are an odd number of such…

Mathematical Physics · Physics 2008-11-26 S. G. Rajeev

Two ring polymers close to each other in space may be either in a segregated phase if there is a strong repulsion between monomers in the polymers, or intermingle in a mixed phase if there is a strong attractive force between the monomers.…

Soft Condensed Matter · Physics 2022-11-23 EJ Janse van Rensburg , E Orlandini , MC Tesi , SG Whittington

From the perspective of the statistical fluctuation theory, we explore the role of the thermodynamic geometries and vacuum (in)stability properties for the topological Einstein-Yang-Mills black holes. In this paper, from the perspective of…

High Energy Physics - Theory · Physics 2015-05-30 Stefano Bellucci , Bhupendra Nath Tiwari

This manuscript introduces novel approaches to three phenomena. First, we extend the algebraic formulation of kinetic theory within the contact framework by making explicit the gauge freedom, thereby obtaining a formulation in which the…

Mathematical Physics · Physics 2025-10-29 Begüm Ateşli , Oğul Esen , Miroslav Grmela , Michal Pavelka

We investigate the relation between the phase space structure of Hamiltonian and non-Hamiltonian deterministic thermostats. We show that phase space structures governing reaction dynamics in Hamiltonian systems map to the same type of phase…

Statistical Mechanics · Physics 2008-10-21 Gregory S. Ezra , Stephen Wiggins

We consider an atom (represented by a two-level system) moving in front of a dielectric plate, and study how traces of dissipation and decoherence (both effects induced by vacuum field fluctuations) can be found in the corrections to the…

Quantum Physics · Physics 2017-09-13 Fernando C. Lombardo , Paula I. Villar

An important phase transition in black hole thermodynamics is associated with the divergence of the specific heat with fixed charge and angular momenta, yet one can demonstrate that neither Ruppeiner's entropy metric nor Weinhold's energy…

High Energy Physics - Theory · Physics 2010-12-17 Haishan Liu , H. Lu , Mingxing Luo , Kai-Nan Shao

This paper introduces a new metric and mean on the set of positive semidefinite matrices of fixed-rank. The proposed metric is derived from a well-chosen Riemannian quotient geometry that generalizes the reductive geometry of the positive…

Optimization and Control · Mathematics 2009-10-21 Silvere Bonnabel , Rodolphe Sepulchre

The fundamental impacts of surface geometry on the stability of wetting states, and the transitions between them are elucidated for posts and reentrant structures in both two and three dimensions. We identify three principal outcomes of…

Soft Condensed Matter · Physics 2019-10-16 Jack R. Panter , Halim Kusumaatmaja

We investigate the thermoelectric properties of a double quantum dot system coupled to two metallic reservoirs, focusing on two main effects: (i) the influence of coupling asymmetry between the quantum dot and the reservoirs on the Seebeck…

Mesoscale and Nanoscale Physics · Physics 2025-01-16 Diego Perez Daroca , Pablo Roura-Bas , Armando A. Aligia

In this letter, we first redefine our formalism of the thermodynamic geometry introduced in [1,2] by changing coordinates of the thermodynamic space by means of Jacobian matrices. We then show that the geometrothermodynamics (GTD) is…

General Relativity and Quantum Cosmology · Physics 2020-03-17 Seyed Ali Hosseini Mansoori , Behrouz Mirza

We show that an increasingly strong thermal rectification effect occurs in the thermodynamic limit in a one-dimensional, graded rotor lattice with nearest-neighboring interactions only. The underlying mechanism is related to the transition…

Statistical Mechanics · Physics 2020-02-11 Shunjiang You , Daxing Xiong , Jiao Wang

State space geometry is obtained for the one dimensional Blume Emery Griffiths model and the associated scalar curvature(s) investigated for various parameter regimes, including the Blume-Capel limit and the Griffiths model limit. For the…

Statistical Mechanics · Physics 2020-11-13 Anurag Sahay , Riekshika Sanwari

In this paper, we use quadratic forms diagonalization methods applied to the function thermodynamic energy to analyze the stability of physical systems. Taylor's expansion was useful to write a quadratic expression for the energy function.…

Statistical Mechanics · Physics 2020-04-14 F. N. Lima , J. M. De Sousa

We explore the influence of geometry in the critical behavior of sparse long-range spin models. We examine a model with interactions that can be continuously tuned to induce distinct changes in the metric, topology, and dimensionality of…

Quantum Physics · Physics 2025-12-10 Alex Gunning , Aydin Deger , Sridevi Kuriyattil , Andrew J. Daley

In this manuscript, we show how conformal invariance can be incorporated in a classical theory of gravitation, in the context of metric measure space. Metric measure space involves a geometrical scalar $f$, dubbed as density function, which…

General Relativity and Quantum Cosmology · Physics 2016-09-07 Nafiseh Rahmanpour , Hossein Shojaie

A stochastic deformation of a thermodynamic symplectic structure is studied. The stochastic deformation procedure is analogous to the deformation of an algebra of observables like deformation quantization, but for an imaginary deformation…

Statistical Mechanics · Physics 2009-01-08 P. O. Kazinski

Microcanonical description is characterized by the presence of an internal symmetry closely related with the dynamical origin of this ensemble: the reparametrization invariance. Such symmetry possibilities the development of a non…

Statistical Mechanics · Physics 2007-05-23 L. Velazquez , F. Guzman

We present a geometric approach to the three-body problem in the non-relativistic context of the Barbour-Bertotti theories. The Riemannian metric characterizing the dynamics is analyzed in detail in terms of the relative separations.…

General Relativity and Quantum Cosmology · Physics 2009-10-31 László Á Gergely , Mitchell McKain

This study investigates the thermodynamics of phantom BTZ black holes by incorporating leading-order perturbative corrections arising from small statistical fluctuations around equilibrium. Starting from the phantom BTZ black holes review,…

High Energy Physics - Theory · Physics 2025-08-26 Kumar Sambhav Upadhyay , Sudhaker Upadhyay , Bhabani Prasad Mandal
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