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Thermodynamic principles are often deceptively simple and yet surprisingly powerful. We show how a simple rule, such as the net flow of energy in and out of a moving atom under nonequilibrium steady state condition, can expose the…

量子物理 · 物理学 2020-11-30 Daniel Reiche , Francesco Intravaia , Jen-Tsung Hsiang , Kurt Busch , Bei-Lok Hu

A survey on the dynamical and thermodynamical properties of plasmas with strong Coulomb interactions in the quasi-classical density-temperature region is given. First the basic theoretical concepts describing nonideality are discussed. The…

等离子体物理 · 物理学 2009-10-31 W. Ebeling , J. Ortner

We suggest a more general than quantum statistical mechanics ($QSM$) microdescription of objects in a heat bath taken into account a vacuum as an object environment - modification of quantum mechanics at finite temperatures; we call it…

量子物理 · 物理学 2011-12-08 A. D. Sukhanov , O. N. Golubjeva

In this paper we derive Kl\"umper-Batchelor-Pearce-Destri-de Vega type nonlinear integral equations for describing the thermodynamics in the sine-Gordon model, when a chemical potential coupled to the topological charge is also present in…

高能物理 - 理论 · 物理学 2025-07-28 Arpad Hegedus

The thermodynamics of quantum systems driven out of equilibrium has attracted increasing attention in last the decade, in connection with quantum information and statistical physics, and with a focus on non-classical signatures. While a…

量子物理 · 物理学 2022-06-01 Gonzalo Manzano , Roberta Zambrini

Within the framework of relativistic quantum field theory, a novel method is established which allows to distinguish non-equilibrium states admitting locally a thermodynamic interpretation. The basic idea is to compare these states with…

高能物理 - 唯象学 · 物理学 2015-06-25 Detlev Buchholz , Izumi Ojima , Hansjoerg Roos

Quantum mechanics does not provide any ready recipe for defining energy density in space, since the energy and coordinate do not commute. To find a well-motivated energy density, we start from a possibly fundamental, relativistic…

量子物理 · 物理学 2024-01-17 V. Stepanyan , A. E. Allahverdyan

The non-equilibrium statistical mechanics and kinetic theory for a model of a confined quasi-two-dimensional gas of inelastic hard spheres is presented. The dynamics of the particles includes an effective mechanism to transfer the energy…

统计力学 · 物理学 2015-06-18 J. Javier Brey , M. I. García de Soria , P. Maynar , V. Buzón

We solve a set of selected exercises on rotational motion requiring a mechanical and thermodynamical analysis. When non-conservative forces or thermal effects are present, a complete study must use the first law of thermodynamics together…

经典物理 · 物理学 2014-04-08 Julio Güémez , Manuel Fiolhais

We give an exact information-theory treatment of the $n$-dimensional black-body radiation process in a non-extensive scenario. We develop a $q$ generalization of the laws of i) Stefan Boltzmann, ii) Planck, and iii) Wien, and show that…

统计力学 · 物理学 2009-11-07 S. Martinez , F. Pennini , C. Tessone , A. Plastino

We treat the problem of the approach to thermal equilibrium by only resorting to quantum dynamics of an isolated macroscopic system. Inspired by the two important works in 2009 and in 1929, we have noted that a condition we call…

量子物理 · 物理学 2015-03-13 Hal Tasaki

We use a semiclassical approximation to derive the partition function for an arbitrary potential in one-dimensional Quantum Statistical Mechanics, which we view as an example of finite temperature scalar Field Theory at a point. We rely on…

量子物理 · 物理学 2009-10-31 C. A. A. de Carvalho , R. M. Cavalcanti

Considering an entropy-based division of energy transferred into heat and work, we develop an alternative theoretical framework for the thermodynamic analysis of two-level systems. When comparing these results with those obtained under the…

量子物理 · 物理学 2021-04-14 Andrés Vallejo , Alejandro Romanelli , Raúl Donangelo

Underlying the classical thermodynamic principles are analogous microscopic laws, arising from the fundamental axioms of quantum mechanics. These define quantum thermodynamic variables such as quantum work and heat and characterize the…

量子物理 · 物理学 2023-05-03 Roie Dann , Ronnie Kosloff

This paper investigates the thermodynamics of a large class of non-Hermitian, $PT$-symmetric oscillators, whose energy spectrum is entirely real. The spectrum is estimated by second-order WKB approximation, which turns out to be very…

量子物理 · 物理学 2014-11-18 H. F. Jones , E. S. Moreira

In this paper, we generalize the improved quasi-particle model proposed in J. Cao et al., [ Phys. Lett. B {\bf711}, 65 (2012)] from finite temperature and zero chemical potential to the case of finite chemical potential and zero…

高能物理 - 唯象学 · 物理学 2013-11-20 Liu-jun Luo , Jing Cao , Yan Yan , Wei-Min Sun , Hong-Shi Zong

We propose a new representation for several quantum master equations in so-called quasithermodynamic form. This representation (when it exists) let one to write down dynamical equations both for diagonal and non-diagonal elements of density…

量子物理 · 物理学 2014-08-21 E. D. Vol

This work presents a unified perspective on thermal equilibrium and quantum dynamics by examining the simplest quantum system, a qubit, as a minimal model. We show that both the thermal partition function and the Loschmidt amplitude can be…

量子物理 · 物理学 2026-03-02 Manmeet Kaur , Somendra M. Bhattacharjee

The objective of this series of three papers is to axiomatically derive quantum mechanics from classical mechanics and two other basic axioms. In this first paper, Schreodinger's equation for the density matrix is fist obtained and from it…

量子物理 · 物理学 2008-02-03 L. S. F. Olavo

Using Relativistic Quantum Geometry we study back-reaction effects of space-time inside the causal horizon of a static de Sitter metric, in order to make a quantum thermodynamical description of space-time. We found a finite number of…

广义相对论与量子宇宙学 · 物理学 2020-01-08 Juan Ignacio Musmarra , Mauricio Bellini