{ "id": "2110.11288", "version": "v1", "published": "2021-10-21T17:17:24.000Z", "updated": "2021-10-21T17:17:24.000Z", "title": "Superradiance and subradiance in inverted atomic arrays", "authors": [ "Oriol Rubies-Bigorda", "Susanne F. Yelin" ], "doi": "10.1103/PhysRevA.106.053717", "categories": [ "quant-ph" ], "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 hereby use 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.", "revisions": [ { "version": "v1", "updated": "2021-10-21T17:17:24.000Z" } ], "analyses": { "keywords": [ "subradiance", "inverted atomic arrays sustain superradiance", "two-dimensional inverted atomic arrays sustain", "subradiant phase appears", "effective two-atom master equation" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. A" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }