Photon scattering from a cold, Gaussian atom cloud
Abstract
We study the effect of a weakly driven atomic cloud’s polarization distribution on its photon scattering line shape in the limit where the atoms can be treated as stationary and randomly distributed. We find three distinct polarization regimes. First, for dilute clouds, the polarization magnitude is relatively constant. Second, for denser clouds, polarization builds at the front of the cloud for near-resonant light. Third, when the cloud condenses to the point where its dimensions become comparable to the wavelength, light focuses towards the back of the cloud for red detuning. Additionally, for these regimes, we show which “mean-field” frameworks accurately describe the differing photon-scattering line shapes. Finally, for even denser clouds, mean-field models become inaccurate and necessitate the full point dipole model that includes atom-atom correlations.
- Authors:
-
[1];
[2]
- Purdue Univ., West Lafayette, IN (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
- OSTI Identifier:
- 1601559
- Report Number(s):
- LLNL-JRNL-786838
Journal ID: ISSN 2469-9926; PLRAAN; 983904
- Grant/Contract Number:
- AC52-07NA27344; 1804026-PHY
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review A
- Additional Journal Information:
- Journal Volume: 101; Journal Issue: 1; Journal ID: ISSN 2469-9926
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Robicheaux, F., and Sutherland, R. T. Photon scattering from a cold, Gaussian atom cloud. United States: N. p., 2020.
Web. doi:10.1103/PhysRevA.101.013805.
Robicheaux, F., & Sutherland, R. T. Photon scattering from a cold, Gaussian atom cloud. United States. doi:https://doi.org/10.1103/PhysRevA.101.013805
Robicheaux, F., and Sutherland, R. T. Wed .
"Photon scattering from a cold, Gaussian atom cloud". United States. doi:https://doi.org/10.1103/PhysRevA.101.013805. https://www.osti.gov/servlets/purl/1601559.
@article{osti_1601559,
title = {Photon scattering from a cold, Gaussian atom cloud},
author = {Robicheaux, F. and Sutherland, R. T.},
abstractNote = {We study the effect of a weakly driven atomic cloud’s polarization distribution on its photon scattering line shape in the limit where the atoms can be treated as stationary and randomly distributed. We find three distinct polarization regimes. First, for dilute clouds, the polarization magnitude is relatively constant. Second, for denser clouds, polarization builds at the front of the cloud for near-resonant light. Third, when the cloud condenses to the point where its dimensions become comparable to the wavelength, light focuses towards the back of the cloud for red detuning. Additionally, for these regimes, we show which “mean-field” frameworks accurately describe the differing photon-scattering line shapes. Finally, for even denser clouds, mean-field models become inaccurate and necessitate the full point dipole model that includes atom-atom correlations.},
doi = {10.1103/PhysRevA.101.013805},
journal = {Physical Review A},
number = 1,
volume = 101,
place = {United States},
year = {2020},
month = {1}
}
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