Geometrically frustrated systems which are as singles hotter than in company

IF 2 3区 物理与天体物理 Q2 PHYSICS, MATHEMATICAL
Wolfgang Rudolf Bauer
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引用次数: 0

Abstract

We show that a set of thermally weakly coupled geometrically frustrated systems (GFSs), each of which is constraint to reside at negative Boltzmann temperatures, is in equilibrium cooler than its constituents. It may even exhibit positive temperatures at low energies. The challenge for the second law of thermodynamics arising from potential heat flow related to the gradient of temperatures between a GFS and its environment is resolved by considering the energy fluctuations above the ground state. They are comprised in the canonical temperature, derived from information theory. Whereas the gradient of Boltzmann temperatures gives the direction of the stochastic drift of the most probable state of a GFS within its environment, the canonical temperature gradient defines that of heat flow.
几何上受挫的系统,其单体温度比公司内更高
我们的研究表明,一组热弱耦合几何受挫系统(GFSs)(其中每个系统都受限于负玻尔兹曼温度)的平衡温度比其组成系统要低。在低能量时,它甚至可能呈现正温度。考虑到基态以上的能量波动,热力学第二定律所面临的挑战就迎刃而解了。它们包含在由信息论推导出的典型温度中。波尔兹曼温度梯度给出了全球定位系统在其环境中最可能状态的随机漂移方向,而规范温度梯度则定义了热流的方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.10
自引率
14.30%
发文量
542
审稿时长
1.9 months
期刊介绍: Publishing 50 issues a year, Journal of Physics A: Mathematical and Theoretical is a major journal of theoretical physics reporting research on the mathematical structures that describe fundamental processes of the physical world and on the analytical, computational and numerical methods for exploring these structures.
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