The derivation of the Liouville equation from the Schrodinger equation and its implications

• URL: http://arxiv.org/abs/2511.21601v1
• Date: Wed, 26 Nov 2025 17:16:53 GMT
• Title: The derivation of the Liouville equation from the Schrodinger equation and its implications
• Authors: A. P. Meilakhs,
• Abstract summary: We present a new way of deriving classical mechanics from quantum mechanics.<n>Key feature of the method is its compatibility with the standard approach used to derive transition rates between quantum states due to interactions.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present a new way of deriving classical mechanics from quantum mechanics. A key feature of the method is its compatibility with the standard approach used to derive transition rates between quantum states due to interactions. We apply the developed method to derive the main formulas of physical kinetics. We observe that, through the Liouville equation, we can deduce the non-collision part of the Boltzmann equation, and that, through the matrix of transition rates, we can deduce the collision integral. As a final result of the manuscript, we derive the Boltzmann equation from the Schrödinger equation as a single piece of formal mathematical manipulation, without any non-rigorous plausible reasoning used to glue together its different parts.

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