Dynamical indistinguishability and statistics in quantum fluids

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