Revisiting Joule-expansion experiments with a quantum gas

• URL: http://arxiv.org/abs/2410.24217v1
• Date: Thu, 31 Oct 2024 17:59:46 GMT
• Title: Revisiting Joule-expansion experiments with a quantum gas
• Authors: Christopher J. Ho, Simon M. Fischer, Gevorg Martirosyan, Sebastian J. Morris, Jiří Etrych, Christoph Eigen, Zoran Hadzibabic,
• Abstract summary: We revisit the classic Joule-expansion experiments, now with a quantum-degenerate atomic Bose gas. In contrast to the classical-gas experiments, where no temperature change was measured, here we observe both cooling and heating effects.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We revisit the classic Joule-expansion experiments, now with a quantum-degenerate atomic Bose gas. In contrast to the classical-gas experiments, where no temperature change was measured, here we observe both cooling and heating effects, which arise, respectively, due to quantum statistics and inter-particle interactions. Our observations are reproduced in numerical calculations within the Hartree-Fock approximation.

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