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arXiv 1606.04444gr-qccond-mat.stat-mech
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多指时间协变系统的统计力学

Statistical mechanics of covariant systems with multi-fingered time

Goffredo Chirco, Thibaut Josset

摘要:

最近,在[班级]量子重力33(2016)045005],作者提出了一种新的方法,将统计力学的框架扩展到没有额外规范的重新参数化不变系统。在这项工作中,该方法被推广到系统定义的一个以上的哈密顿约束(多指时间)。我们展示了如何众所周知的功能,作为埃菲菲斯特-托尔曼效应和Jüttner分布的相对论气体可以一致地恢复从协变方法中的多指框架。最后,所发挥的关键作用的相互作用的定义中的一个全球性的概念的平衡进行了讨论。

英文摘要:

Recently, in [Class. Quantum Grav. 33 (2016) 045005], the authors proposed a new approach extending the framework of statistical mechanics to reparametrization-invariant systems with no additional gauges. In this work, the approach is generalized to systems defined by more than one Hamiltonian constraints (multi-fingered time). We show how well known features as the Ehrenfest- Tolman effect and the Jüttner distribution for the relativistic gas can be consistently recovered from a covariant approach in the multi-fingered framework. Eventually, the crucial role played by the interaction in the definition of a global notion of equilibrium is discussed.

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