Nonconjugate quantum subsystems
Nonconjugate quantum subsystems
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非共轭量子子系统
DOI：
10.1103/physreve.106.034111
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发表时间：
2022
影响因子：
2.4
通讯作者：
Stokes A
中科院分区：
文献类型：
--
作者：
Stokes A
我们介绍了另一种理解量子系统分解为相互作用部分的方法，并证明在几个物理模型中这是自然的。这使我们能够为与热浴相互作用的工作系统定义一个约化密度算符，它与工作系统能量中包含的相互作用哈密顿量是一致的。我们随后提供了量子热力学的自洽公式，它引起了对热力学关系和先前在文献中定义的量的非平凡的物理修正。
We introduce an alternative way to understand the decomposition of a quantum system into interacting parts and show that it is natural in several physical models. This enables us to define a reduced density operator for a working system interacting with a thermal bath that is consistent with the inclusion of the interaction Hamiltonian within the working system's energy. We subsequently provide a self-consistent formulation of quantum thermodynamics that incurs nontrivial physical corrections to thermodynamic relations and quantities previously defined within the literature.