Non-conjugate quantum subsystems

• URL: http://arxiv.org/abs/2106.11017v2
• Date: Wed, 7 Sep 2022 15:32:18 GMT
• Title: Non-conjugate quantum subsystems
• Authors: Adam Stokes
• Abstract summary: We introduce an alternative way to understand the decomposition of a quantum system into interacting parts. We show that it is natural in several physical models.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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