| Full text | |
| Author(s): |
Cipris, A.
[1]
;
Moreira, N. A.
[2]
;
do Espirito Santo, T. S.
[2]
;
Weiss, P.
[1]
;
Villas-Boas, C. J.
[3]
;
Kaiser, R.
[1]
;
Guerin, W.
[1]
;
Bachelard, R.
[3]
Total Authors: 8
|
| Affiliation: | [1] Univ Cote Azur, Inst Phys Nice, CNRS, F-06560 Valbonne - France
[2] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13566590 Sao Carlos, SP - Brazil
[3] Univ Fed Sao Carlos, Dept Fis, Rodovia Washington Luis, Km 235SP-310, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Physical Review Letters; v. 126, n. 10 MAR 12 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Dipole-dipole interactions are at the origin of long-lived collective atomic states, often called subradiant, which are explored for their potential use in novel photonic devices or in quantum protocols. Here, we study subradiance beyond the single-excitation regime and experimentally demonstrate a 200-fold increase in the population of these modes, as the saturation parameter of the driving field is increased. We attribute this enhancement to a mechanism similar to optical pumping through the well-coupled superradiant states. The lifetimes are unaffected by the pump strength, as the system is ultimately driven toward the single-excitation sector. Our study is a new step in the exploration of the many-body dynamics of large open systems. (AU) | |
| FAPESP's process: | 19/02071-9 - Beyond the linear optics limit: quantum effects in a ultracold dilute cloud |
| Grantee: | Tiago Santiago do Espirito Santo |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate (Direct) |
| FAPESP's process: | 19/13143-0 - Cold atoms, photons, and quantum correlations |
| Grantee: | Celso Jorge Villas-Bôas |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/15554-5 - Transport and localization of light in two and three dimensions |
| Grantee: | Romain Pierre Marcel Bachelard |
| Support Opportunities: | Research Grants - Young Investigators Grants - Phase 2 |
| FAPESP's process: | 18/12653-2 - Lieb-Robinson bounds and superradiance in ultracold atomic clouds |
| Grantee: | Tiago Santiago do Espirito Santo |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 18/01447-2 - Correlations of the light scattered by atomic clouds |
| Grantee: | Romain Pierre Marcel Bachelard |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 19/11999-5 - Collective effects on atomic systems, nuclear spins and cavity quantum electrodynamics |
| Grantee: | Celso Jorge Villas-Bôas |
| Support Opportunities: | Regular Research Grants |