|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'503'724
Articles rated: 2609
23 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Exact electrodynamics versus standard optics for a slab of cold dense gas | | Juha Javanainen
; Janne Ruostekoski
; Yi Li
; Sung-Mi Yoo
; | | Date: |
22 Mar 2017 | | Abstract: | We study light propagation through a slab of cold gas using both the standard
electrodynamics of polarizable media, and massive atom-by-atom simulations of
the electrodynamics. The main finding is that the predictions from the two
methods may differ qualitatively when the density of the atomic sample $
ho$
and the wavenumber of resonant light $k$ satisfy $
ho k^{-3}gtrsim 1$. The
reason is that the standard electrodynamics is a mean-field theory, whereas for
sufficiently strong light-mediated dipole-dipole interactions the atomic sample
becomes correlated. The deviations from mean-field theory appear to scale with
the parameter $
ho k^{-3}$, and we demonstrate noticeable effects already at
$
ho k^{-3} simeq 10^{-2}$. In dilute gases and in gases with an added
inhomogeneous broadening the simulations show shifts of the resonance lines in
qualitative agreement with the predicted Lorentz-Lorenz shift and "cooperative
Lamb shift", but the quantitative agreement is unsatisfactory. Our
interpretation is that the microscopic basis for the local-field corrections in
electrodynamics is not fully understood. | | Source: | arXiv, 1703.8438 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER