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Title: 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:
ORCiD logo [1]; ORCiD logo [2]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. 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:10.1103/PhysRevA.101.013805.
Robicheaux, F., and Sutherland, R. T. Wed . "Photon scattering from a cold, Gaussian atom cloud". United States. doi:10.1103/PhysRevA.101.013805.
@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}
}

Journal Article:
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