Canonical quantization for Equilibrium Thermodynamics

Fuente: arXiv
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Main Authors: Santos, Luis F., Ramos, Victor Hugo M., Cius, Danilo, Baldiotti, Mario C., Amaral, Bárbara
Format: Preprint
Published: 2025
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author Santos, Luis F.
Ramos, Victor Hugo M.
Cius, Danilo
Baldiotti, Mario C.
Amaral, Bárbara
author_facet Santos, Luis F.
Ramos, Victor Hugo M.
Cius, Danilo
Baldiotti, Mario C.
Amaral, Bárbara
contents We formulate a canonical quantization of Equilibrium Thermodynamics by applying Dirac's theory of constrained systems. Thermodynamic variables are treated as conjugate pairs of coordinates and momenta, allowing extensive and intensive quantities to be promoted to operators in a Hilbert space. The formalism is applied to the ideal gas, the van der Waals gas, and the photon gas, illustrating both first- and second-class quantization procedures. For the ideal gas, a Schrödinger-like equation emerges in which entropy plays the role of time, and the wave function acquires a phase determined by the internal energy. A pseudo-Hermitian framework restores Hermiticity of the temperature operator and establishes the equivalence among constraint realizations. The approach naturally leads to thermodynamic uncertainty relations and suggests extensions to quantum and topological phase transitions, as well as black-hole and non-equilibrium thermodynamics.
format Preprint
id arxiv_https___arxiv_org_abs_2511_14121
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Canonical quantization for Equilibrium Thermodynamics
Santos, Luis F.
Ramos, Victor Hugo M.
Cius, Danilo
Baldiotti, Mario C.
Amaral, Bárbara
Quantum Physics
We formulate a canonical quantization of Equilibrium Thermodynamics by applying Dirac's theory of constrained systems. Thermodynamic variables are treated as conjugate pairs of coordinates and momenta, allowing extensive and intensive quantities to be promoted to operators in a Hilbert space. The formalism is applied to the ideal gas, the van der Waals gas, and the photon gas, illustrating both first- and second-class quantization procedures. For the ideal gas, a Schrödinger-like equation emerges in which entropy plays the role of time, and the wave function acquires a phase determined by the internal energy. A pseudo-Hermitian framework restores Hermiticity of the temperature operator and establishes the equivalence among constraint realizations. The approach naturally leads to thermodynamic uncertainty relations and suggests extensions to quantum and topological phase transitions, as well as black-hole and non-equilibrium thermodynamics.
title Canonical quantization for Equilibrium Thermodynamics
topic Quantum Physics
url https://arxiv.org/abs/2511.14121