Fink, Martin and Eiglsperger, Johannes and Madronero, Javier and Friedrich, Harald (2012) Influence of retardation in the scattering of ultracold atoms by conducting nanowires. PHYSICAL REVIEW A, 85 (4): 040702. ISSN 1050-2947,
Full text not available from this repository. (Request a copy)Abstract
We study low-energy scattering of a neutral atom by a perfectly conducting cylindrical nanowire. Based on the exact atom-wire potential given recently by Eberlein and Zietal [Phys. Rev. A 80, 012504 (2009)] we derive tractable expressions for both the nonretarded van der Waals limit and the highly retarded limit as well as a realistic description of the transition between these two limits. For real atoms and wire radii greater than a few atomic units, the nonretarded van der Waals limit is insufficient, whereas the highly retarded limit of the atom-wire potential gives an accurate description of low-energy elastic scattering and absorption cross sections.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DISPERSION COEFFICIENTS; HELIUM; RANGE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 May 2020 10:19 |
| Last Modified: | 14 May 2020 10:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18867 |
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