8 papers · 1 filter
Deviations from thermal light statistics in ensembles of independent two-level emitters
Manuel Bojer, André Cidrim, Romain Bachelard +1
We investigate the light statistics of an ensemble of independent motionless two-level atoms in a product state. We identify the conditions under which the cold atomic ensemble emi…
Detecting multilevel entanglement from light-based entanglement witnesses
Pedro Rosario, Romain Bachelard
We introduce a set of electric-field based inequalities capable of detecting multilevel entanglement from a system of N quantum emitters. We determine that the polarization channel…
Coherent Control of Photon Correlations in Trapped Ion Crystals
K. Singh, A. Cidrim, A. Kovalenko +4
While the spontaneous emission from independent emitters provides spatially uncorrelated photons - a typical manifestation of quantum randomness, the interference of the coherent s…
Postselected Entangled States by Photon Detection
Pedro Rosario, A. Cidrim, R. Bachelard
Postselection is a non-deterministic mechanism to entangle subsystems, often used in weakly-excited systems. We here show how highly-excited ensembles of two-level emitters can be…
Unraveling Dicke Superradiant Decay with Separable Coherent Spin States
Pedro Rosario, Luiz O. R. Solak, A. Cidrim +2
We show that idealized Dicke superradiant decay from a fully inverted state can at all times be described by a positive statistical mixture of coherent spin states (CSS). Since CSS…
Condensation of vanishing photon emission rates in random atomic clouds
Viviana Viggiano, Romain Bachelard, Fabio Deelan Cunden +5
In the collective photon emission from atomic clouds both the atomic transition frequency and the decay rate are modified compared to a single isolated atom, leading to the effects…