Title | Super and subradiance in cold atomic clouds: cooperative decay modes and random states |
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Speaker | Saverio Pascazio (Universita di Bari) |
Date&time |
📅 Tuesday, April 1 🕓 11.00 (Rome) |
Location | room 138 (SISSA, via Bonomea) |
Abstract | The study of cooperative effects in spontaneous radiation emission by atomic ensembles has attracted great attention since Dicke’s 1954 seminal article on superradiance. The phenomenon of subradiance, on the other hand, is less understood, and has been observed less than 10 years ago (by Guerin, Araújo and Kaiser), who detected very slow decay, with lifetimes of the order of 100 times the natural lifetime of individual (independent) atoms. By using random matrices, we investigate the features of the spontaneous decay of a dilute cold atomic cloud, and analyze both super- and subradiant states. |
🔗 Past seminars |
🔗 Past journal club meetings |