Moiré Superradiance in Cavity Quantum Electrodynamics with Quantum Atom Gas

• URL: http://arxiv.org/abs/2503.17696v2
• Date: Wed, 26 Mar 2025 02:38:37 GMT
• Title: Moiré Superradiance in Cavity Quantum Electrodynamics with Quantum Atom Gas
• Authors: Lu Zhou, Zheng-Chun Li, Keye Zhang, Zhihao Lan, Alessio Celi, Weiping Zhang,
• Abstract summary: We present a scheme demonstrating moir'e effects in a one-dimensional cold atom-cavity coupling system.<n>We derive the cavity field spectrum, connected to the dynamical structure factor, and showcase controlled atomic diffusion.
• Score: 2.984131602667745
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: As a novel platform for exploring exotic quantum phenomena, the moir\'e lattice has garnered significant interest in solid-state physics, photonics, and cold atom physics. While moir\'e lattices in two- and three-dimensional systems have been proposed for neutral cold atoms, the simpler one-dimensional moir\'e effect remains largely unexplored. We present a scheme demonstrating moir\'e effects in a one-dimensional cold atom-cavity coupling system, which resembles a generalized open Dicke model exhibiting superradiant phase transitions. We reveal a strong link between the phase transition critical point and the one-dimensional moir\'e parameter. Additionally, we derive the cavity field spectrum, connected to the dynamical structure factor, and showcase controlled atomic diffusion. This work provides a new route for testing one-dimensional moir\'e effects with cold atoms and open new possibility of moir\'e metrology.

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