Superradiance and Subradiance: collective effects for Quantum Technologies | Eric Sánchez

In this video, Eric Sanchez will explain how the behaviour of an atom emitting light spontaneously can change drastically when it's not a single one but a whole ensemble of atoms really close together. Collective effects arise in this situation, as Dicke superradiance or really long-lived states, useful for novel quantum technologies such as atomic clocks or quantum memories. 00:06 - 02:18: What is spontaneous emission? 02:19 - 03:20: Quantum Open Systems 03:21 - 04:50: An ensemble of atoms 04:51 - 07:16: Superradiance and subradiance 07:17 - 08:05: Ordered arrays 08:06 - 11:49: Applications of collective effects 11:50 - 12.30: Conclusion