Related papers: Pauli crystal superradiance

Pauli crystal superradiance

URL: http://arxiv.org/abs/2505.02837v1
Date: Mon, 05 May 2025 17:59:58 GMT
Title: Pauli crystal superradiance
Authors: Daniel Ortuño-Gonzalez, Rui Lin, Justyna Stefaniak, Alexander Baumgärtner, Gabriele Natale, Tobias Donner, R. Chitra,
Abstract summary: Pauli crystals are unique geometric structures of non-interacting fermions, resembling crystals, that emerge solely from Fermi statistics and confinement.<n>We analytically show that when coupled to a cavity, degeneracy in Pauli crystals can trigger zero-threshold transitions to superradiance.<n>This superradiance is accompanied by the emergence of a genuine quantum crystalline state, wherein the atomic density is periodically interplayed.
Score: 37.990126858249944
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Pauli crystals are unique geometric structures of non-interacting fermions, resembling crystals, that emerge solely from Fermi statistics and confinement. Unlike genuine quantum crystals that arise from interparticle interactions, Pauli crystals do not break translation symmetry but nonetheless exhibit nontrivial many-body correlations. In this Letter, we explore Pauli crystal formation in a cavity-fermion setup. We analytically show that when coupled to a cavity, degeneracy in Pauli crystals can trigger zero-threshold transitions to superradiance. This superradiance is accompanied by the emergence of a genuine quantum crystalline state, wherein the atomic density is periodically modulated. We substantiate our findings using state-of-the-art numerical simulations. The combined interplay between statistics, confinement geometry and interactions mediated by light thus facilitates a novel pathway to quantum crystallization.

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