Van der Waals dephasing for Dicke subradiance in cold atomic clouds
arXiv:2012.06248 · doi:10.1103/PhysRevA.103.033714
Abstract
We investigate numerically the role of near-field dipole-dipole interactions on the late emission dynamics of large disordered cold atomic samples driven by a weak field. Previous experimental and numerical studies of subradiance in macroscopic samples have focused on low-density samples of pure two-level atoms, without internal structure, which corresponds to a scalar representation of the light. The cooperative nature of the late emission of light is then governed by the resonant optical depth. Here, by considering the vectorial nature of the light, we show the detrimental role of the near-field terms on cooperativity in higher-density samples. The observed reduction in the subradiant lifetimes is interpreted as a signature of the inhomogeneous broadening due to the near-field contributions, in analogy with the Van der Waals dephasing phenomenon for superradiance.
References in corpus (33)
- Exponential improvement in photon storage fidelities using subradiance and "selective radiance" in atomic arrays
- Subradiance in a Large Cloud of Cold Atoms
- Absence of Anderson localization of light in a random ensemble of point scatterers
- Superradiance in a Large and Dilute Cloud of Cold Atoms in the Linear-Optics Regime
- Observation of single-photon superradiance and the cooperative Lamb shift in an extended sample of cold atoms
- Shifts of a resonance line in a dense atomic sample
- Cooperative effects and disorder: A scaling analysis of the spectrum of the effective atomic Hamiltonian
- Optical resonance shifts in the fluorescence of thermal and cold atomic gases
- Red light for Anderson localization
- Magnetic-field-driven localization of light in a cold-atom gas
- Light scattering from dense cold atomic media
- The Collective Lamb Shift of a Nanoscale Atomic Vapour Layer within a Sapphire Cavity
- Light propagation beyond the mean-field theory of standard optics
- Coherent Scattering of Near-Resonant Light by a Dense, Microscopic Cloud of Cold Two-Level Atoms: Experiment versus Theory
- Transmission of near-resonant light through a dense slab of cold atoms
- Subradiance and radiation trapping in cold atoms
- Angular distribution of single photon superradiance in a dilute and cold atomic ensemble
- Spatial and temporal localization of light in two dimensions
- Control of light trapping in a large atomic system by a static magnetic field
- Maximum refractive index of an atomic medium
- Finite-size scaling analysis of localization transition for scalar waves in a 3D ensemble of resonant point scatterers
- Robustness of Dicke subradiance against thermal decoherence
- Population of collective modes in light scattering by many atoms
- Collective Excitation Dynamics of a Cold Atom Cloud
- Intensity fluctuations signature of 3D Anderson localization of light
- Decay dynamics in the coupled-dipole model
- Collective Multi-mode Vacuum Rabi Splitting
- Homogenization of an ensemble of interacting resonant scatterers
- Superradiance as single scattering embedded in an effective medium
- Microscopic theory of photonic band gaps in optical lattices
- Near-resonant light transmission in two-dimensional dense cold atomic media with short-range positional correlations
- Anderson localization of light in dimension
- Localization versus subradiance in three-dimensional scattering of light
Cited by in corpus (8)
- Generating long-lived entangled states with free-space collective spontaneous emission
- Superradiance as single scattering embedded in an effective medium
- Subradiance in dilute atomic ensembles: Role of pairs and multiple scattering
- Optical interpretation of linear-optics superradiance and subradiance
- Renormalization group analysis of near-field induced dephasing of optical spin waves in an atomic medium
- Super- and subradiance in dilute disordered cold atomic samples: observations and interpretations
- Cooperative atomic emission from a line of atoms interacting with a resonant plane surface
- Breaking of reciprocity and the Pancharatnam-Berry phase for light scattered by a disordered cold atom cloud