Effect of atomic distribution on cooperative spontaneous emission

Abstract

We study cooperative single-photon spontaneous emission from N multilevel atoms for different atomic distributions in optical vector theory. Instead of the average approximation for interatomic distance or the continuum approximation (sums over atoms replaced by integrals) for atomic distribution, the positions of every atom are taken into account by numerical calculation. It is shown that the regularity of atomic distribution has considerable influence on cooperative spontaneous emission. For a small atomic sample (compared with radiation wavelength), to obtain strong superradiance not only needs the uniform excitation (the Dicke state) but also requires the uniform atomic distribution. For a large sample, the uniform atomic distribution is beneficial to subradiance of the Dicke state, while the influence of atomic distribution on the timed Dicke state is weak and its time evolution obeys exponential decay approximately. In addition, we also investigate the corresponding emission spectrum and verify the directed emission for the timed Dicke state for a large atomic sample.

9 pages, 9 figures

References in corpus (6)

• Dynamical evolution of correlated spontaneous emission of a single photon from a uniformly excited cloud of N atoms
• Quantum Zeno and Anti-Zeno Effect without Rotating Wave Approximation
• Cooperative Spontaneous Emission as a Many Body Eigenvalue Problem
• Quantum Interferences in Cooperative Dicke Emission from Spatial Variation of Laser Phase
• Coherent control of collective spontaneous emission in an extended atomic ensemble and quantum storage
• Super- and subradiant emission of two-level systems in the near-Dicke limit

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• Quantum Antennas
• Population of collective modes in light scattering by many atoms
• Generation of Photonic Matrix Product States with Rydberg Atomic Arrays
• Symmetry protected single photon subradiance
• Competition between finite-size effects and dipole-dipole interactions in few-atom systems
• Fano-Agarwal couplings and non-rotating wave approximation in single-photon timed-Dicke subradiance
• Simulating Dicke like superradiance with classical light sources
• Near-resonant light transmission in two-dimensional dense cold atomic media with short-range positional correlations
• Topological quantum optical states in quasiperiodic cold atomic chains
• Photon statistics of the light transmitted and reflected by a two-dimensional atomic array
• Universal trapping law induced by atomic cloud in single-photon cooperative dynamics
• Single photon transfer controlled by excitation phase in a two-atom cavity system