arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1504.02797quant-phcond-mat.stat-mechmath-phmath.MPphysics.hist-ph
收藏

从纠缠对称性看统计力学的基础

Foundations of statistical mechanics from symmetries of entanglement

Sebastian Deffner, Wojciech H. Zurek

摘要:

不变性--纠缠辅助不变性--是最近发现的复合量子系统的对称性。我们表明,热力学平衡态的特点是他们的不变性。特别地,具有哈密顿量$H_\mathcal{S}$的系统$\mathcal{S} $的微正则平衡在每个么正变换下都是完全能量简并的量子态不变量。正则平衡的表示然后从简单地计数简并能态。我们的概念新颖的方法是免费的数学模糊的概念,如合奏,随机性等,而且,虽然它甚至不依赖于概率,但它有助于理解它在量子世界中的作用。

英文摘要:

Envariance -- entanglement assisted invariance -- is a recently discovered symmetry of composite quantum systems. We show that thermodynamic equilibrium states are fully characterized by their envariance. In particular, the microcanonical equilibrium of a system $\mathcal{S} $ with Hamiltonian $H_\mathcal{S}$ is a fully energetically degenerate quantum state envariant under every unitary transformation. The representation of the canonical equilibrium then follows from simply counting degenerate energy states. Our conceptually novel approach is free of mathematically ambiguous notions such as ensemble, randomness, etc., and, while it does not even rely on probability, it helps to understand its role in the quantum world.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑