热力学功提取的信息论基础
The information-theoretic foundation of thermodynamic work extraction
摘要:
在本文中,我应用新提出的信息理论的原则,热力学功提取。我表明,如果它是可能的提取工作确定性从一个物理系统准备在任何一组状态,那么这些状态必须彼此区分。这一结果是独立于尺度和特定的动力学定律的;它还提供了热力学和信息论之间的新联系,通过能量守恒定律(而不是热力学第二定律)建立。尽管与这些结论相容,现有的热力学方法不能提供这样的一般性的结果,因为它们是尺度依赖的(依赖于合奏或粗粒化)或绑定到特定的动力学定律。因此,本文提供了一个更广泛的基础热力学,与冯诺依曼的通用构造理论的影响
英文摘要:
In this paper I apply newly-proposed information-theoretic principles to thermodynamic work extraction. I show that if it is possible to extract work deterministically from a physical system prepared in any one of a set of states, then those states must be distinguishable from one another. This result is formulated independently of scale and of particular dynamical laws; it also provides a novel connection between thermodynamics and information theory, established via the law of conservation of energy (rather than the second law of thermodynamics). Albeit compatible with these conclusions, existing thermodynamics approaches cannot provide a result of such generality, because they are scale-dependent (relying on ensembles or coarse-graining) or tied to particular dynamical laws. This paper thus provides a broader foundation for thermodynamics, with implications for the theory of von Neumann's universal constructor
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