Collisional properties of trapped cold chromium atoms
(2004) In Physical Review A (Atomic, Molecular and Optical Physics) 69(3). p.1-030701- Abstract
- We report on calculations of the elastic cross section and thermalization rate for collision between two maximally spin-polarized chromium atoms in the cold and ultracold regimes, relevant to buffer-gas and magneto-optical cooling. We calculate ab initio potential-energy curves for Cr-2 and the van der Waals coefficient C-6, and construct interaction potentials between two colliding Cr atoms. We explore the effect of shape resonances on the elastic cross section, and find that they dramatically affect the thermalization rate. Our calculated value for the s-wave scattering length is compared in magnitude with a recent measurement. We propose that a dip in the elastic rate coefficient could be experimentally exploited to obtain an accurate... (More)
- We report on calculations of the elastic cross section and thermalization rate for collision between two maximally spin-polarized chromium atoms in the cold and ultracold regimes, relevant to buffer-gas and magneto-optical cooling. We calculate ab initio potential-energy curves for Cr-2 and the van der Waals coefficient C-6, and construct interaction potentials between two colliding Cr atoms. We explore the effect of shape resonances on the elastic cross section, and find that they dramatically affect the thermalization rate. Our calculated value for the s-wave scattering length is compared in magnitude with a recent measurement. We propose that a dip in the elastic rate coefficient could be experimentally exploited to obtain an accurate value for the scattering length. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/139686
- author
- Pavlovic, Z ; Roos, Björn LU ; Cote, R and Sadeghpour, H R
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 69
- issue
- 3
- pages
- 1 - 030701
- publisher
- American Physical Society
- external identifiers
-
- wos:000220605200005
- scopus:4644237374
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.69.030701
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)
- id
- 4e8122a3-5567-4496-b59b-3786254f0564 (old id 139686)
- date added to LUP
- 2016-04-01 12:29:07
- date last changed
- 2023-01-27 00:18:35
@article{4e8122a3-5567-4496-b59b-3786254f0564,
abstract = {{We report on calculations of the elastic cross section and thermalization rate for collision between two maximally spin-polarized chromium atoms in the cold and ultracold regimes, relevant to buffer-gas and magneto-optical cooling. We calculate ab initio potential-energy curves for Cr-2 and the van der Waals coefficient C-6, and construct interaction potentials between two colliding Cr atoms. We explore the effect of shape resonances on the elastic cross section, and find that they dramatically affect the thermalization rate. Our calculated value for the s-wave scattering length is compared in magnitude with a recent measurement. We propose that a dip in the elastic rate coefficient could be experimentally exploited to obtain an accurate value for the scattering length.}},
author = {{Pavlovic, Z and Roos, Björn and Cote, R and Sadeghpour, H R}},
issn = {{1050-2947}},
language = {{eng}},
number = {{3}},
pages = {{1--030701}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Collisional properties of trapped cold chromium atoms}},
url = {{http://dx.doi.org/10.1103/PhysRevA.69.030701}},
doi = {{10.1103/PhysRevA.69.030701}},
volume = {{69}},
year = {{2004}},
}