Affiliation:
1. University of Freiburg
2. University of Cambridge
Abstract
Pauli crystals are ordered geometric structures that emerge in
trapped noninteracting fermionic systems due to their underlying Pauli
repulsion. The deformation of Pauli crystals - often called melting -
has been recently observed in experiments, but the mechanism that leads
to it remains unclear. We address this question by studying the melting
dynamics of N=6N=6
fermions as a function of periodic driving and experimental
imperfections in the trap (anisotropy and anharmonicity) by employing a
combination of numerical simulations and Floquet theory. Surprisingly,
we reveal that the melting of Pauli crystals is not simply a direct
consequence of an increase in system energy, but is instead related to
the trap geometry and the population of the Floquet modes. We show that
the melting is absent in traps without imperfections and triggered only
by a sufficiently large shaking amplitude in traps with
imperfections.
Funder
Austrian Science Fund
Engineering and Physical Sciences Research Council
Subject
General Physics and Astronomy
Cited by
1 articles.
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1. Correlations, Shapes, and Fragmentations of Ultracold Matter;High Performance Computing in Science and Engineering '22;2024