Superradiance and subradiance in inverted atomic arrays
- URL: http://arxiv.org/abs/2110.11288v2
- Date: Thu, 1 Dec 2022 17:56:49 GMT
- Title: Superradiance and subradiance in inverted atomic arrays
- Authors: Oriol Rubies-Bigorda and Susanne F. Yelin
- Abstract summary: Superradiance and subradiance are collective effects that emerge from coherent interactions between quantum emitters.
We use herein a mean-field approach to reduce the complex many-body system to an effective two-atom master equation.
We find that three-dimensional and two-dimensional inverted atomic arrays sustain superradiance below a critical lattice spacing.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Superradiance and subradiance are collective effects that emerge from
coherent interactions between quantum emitters. Due to their many-body nature,
theoretical studies of extended samples with length larger than the atomic
transition wavelength are usually restricted to their early time behavior or to
the few-excitation limit. We use herein a mean-field approach to reduce the
complex many-body system to an effective two-atom master equation that includes
all correlations up to second order and that can be numerically propagated in
time. We find that three-dimensional and two-dimensional inverted atomic arrays
sustain superradiance below a critical lattice spacing and quantify the scaling
of the superradiant peak for both dimensionalities. Finally, we study the
late-time dynamics of the system and demonstrate that a subradiant phase
appears before the system finally relaxes.
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