发帖
雷达卡
摘要翻译：
最小热力学控制参数集由一个统计（热）参数和一个机械参数组成。这些就足以引入所有相关的热力学变量；然后，热力学过程可以定义为这个二维控制平面上的路径。撇开相干性不谈，我们证明了对于一大类具有离散光谱的量子物体和所考虑的循环，卡诺效率是一个普遍的上界。在动态（有限时间）状态下，重整化热力学变量允许以系统的方式包括非平衡现象。在大速度限制下，机器功能不复存在；达到这个极限的方式取决于所考虑的循环类型。
---
英文标题：
《Quantum thermodynamic processes: A control theory for machine cycles》
---
作者：
Jan Birjukov, Thomas Jahnke and G\"unter Mahler
---
最新提交年份：
2008
---
分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
--
---
英文摘要：
The minimal set of thermodynamic control parameters consists of a statistical (thermal) and a mechanical one. These suffice to introduce all the pertinent thermodynamic variables; thermodynamic processes can then be defined as paths on this 2-dimensional control plane. Putting aside coherence we show that for a large class of quantum objects with discrete spectra and for the cycles considered the Carnot efficiency applies as a universal upper bound. In the dynamic (finite time) regime renormalized thermodynamic variables allow to include non-equilibrium phenomena in a systematic way. The machine function ceases to exist in the large speed limit; the way, in which this limit is reached, depends on the type of cycle considered.
---
PDF链接：
https://arxiv.org/pdf/712.0534
京公网安备 11010802022788号
