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arXiv · 2106.11017

Non-conjugate quantum subsystems

Adam Stokes
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Abstract

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 non-trivial physical corrections to thermodynamic relations and quantities previously defined within the literature.

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Adam Stokes. 2021-06-21. Non-conjugate quantum subsystems. https://doi.org/10.1103/physreve.106.034111

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