Superradiance as single scattering embedded in an effective medium

Abstract

We present an optical picture of linear-optics superradiance, based on a single scattering event embedded in a dispersive effective medium composed by the other atoms. This linear-dispersion theory is valid at low density and in the single-scattering regime, i.e., when the exciting field is largely detuned. The comparison with the coupled-dipole model shows a perfect agreement for the superradiant decay rate. Then we use two advantages of this approach. First we make a direct comparison with experimental data, without any free parameter, and show a good quantitative agreement. Second, we address the problem of moving atoms, which can be efficiently simulated by adding the Doppler broadening to the theory. In particular, we discuss how to recover superradiance at high temperature.

References in corpus (25)

• Superradiance in a Large and Dilute Cloud of Cold Atoms in the Linear-Optics Regime
• Collective atomic scattering and motional effects in a dense coherent medium
• Observation of single-photon superradiance and the cooperative Lamb shift in an extended sample of cold atoms
• Dynamical evolution of correlated spontaneous emission of a single photon from a uniformly excited cloud of N atoms
• Modification of radiation pressure due to cooperative scattering of light
• Light propagation beyond the mean-field theory of standard optics
• Cooperative Emission of a Coherent Superflash of Light
• Polaritonic modes in a dense cloud of atoms
• Subradiance and radiation trapping in cold atoms
• Cooperative emission of a pulse train in an optically thick scattering medium
• Angular distribution of single photon superradiance in a dilute and cold atomic ensemble
• Role of disorder in super- and subradiance of cold atomic clouds
• Mesoscopic coherence in light scattering from cold, optically dense and disordered atomic systems
• Coherent flash of light emitted by a cold atomic cloud
• Coherent Forward Broadening in Cold Atom Clouds
• Microscopic Lensing by a Dense, Cold Atomic Sample
• Robustness of Dicke subradiance against thermal decoherence
• Hanle effect in coherent backscattering
• Population of collective modes in light scattering by many atoms
• Direct measurement of the Wigner time-delay for the scattering of light by a single atom
• Collective Excitation Dynamics of a Cold Atom Cloud
• Collective Multi-mode Vacuum Rabi Splitting
• Resonant-light diffusion in a disordered atomic layer
• Van der Waals dephasing for Dicke subradiance in cold atomic clouds
• Influence of atomic motion on the collective effects in dense and cold atomic ensembles

Cited by in corpus (7)

• Many-body localization in waveguide QED
• Van der Waals dephasing for Dicke subradiance in cold atomic clouds
• Subradiance in dilute atomic ensembles: Role of pairs and multiple scattering
• Optical interpretation of linear-optics superradiance and subradiance
• Super- and subradiance in dilute disordered cold atomic samples: observations and interpretations
• $N$ Scaling of Large-Sample Collective Decay in Inhomogeneous Ensembles
• Temporal dynamics in the Bragg reflection of light by cold atoms: flash effect and superradiant decay