Dynamical indistinguishability and statistics in quantum fluids

Alessio Zaccone; Kostya Trachenko

doi:10.1016/j.aop.2023.169272

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arXiv · 2107.09995

Dynamical indistinguishability and statistics in quantum fluids

Alessio Zaccone·Kostya Trachenko

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Abstract

For a system to qualify as a quantum fluid, quantum-statistical effects should operate in addition to quantum-mechanical ones. Here, we address the hitherto unexplored dynamical condition for the quantum-statistical effects to be manifested, and consider particle exchange events in the gaslike regime of fluid dynamics as a dynamical process with an intrinsic time scale. We subsequently propose a quantitative criterion of particle indistinguishability and associated quantum statistics to be inoperative at short time and emerge at long time. Verifiable experimentally, our predictions enable a systematic search for a transition between statistics-active and statistics-inactive regimes in quantum fluids.

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Alessio Zaccone, Kostya Trachenko. 2021-07-21. Dynamical indistinguishability and statistics in quantum fluids. https://doi.org/10.1016/j.aop.2023.169272

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