Interaction-Enhanced Superradiance of a Ryderg-Atom Array
arxiv(2024)
摘要
We study the superradiant phase transition of an array of Rydberg atoms in a
dissipative microwave cavity. Under the interplay of the cavity field and the
long-range Rydberg interaction, the steady state of the system exhibits an
interaction-enhanced superradiance, with vanishing critical atom-cavity
coupling rates at a discrete set of interaction strengths. We find that, while
the phenomenon can be analytically understood in the case of constant
all-to-all interaction, the enhanced superradiance persists under the spatially
dependent dipolar interaction, but shifted in the critical interaction
strengths. The diverging susceptibility at these critical points is captured by
emergent quantum Rabi models, each of which comprises a pair of collective
atomic states with different numbers of atomic excitations. These collective
states become degenerate at the critical interaction strengths, resulting in a
superradiant phase for an arbitrarily small atom-cavity coupling.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要