Inelastic and elastic collision rates for triplet states of ultracold strontium

We report measurement of the inelastic and elastic collision rates for ^{88}Sr atoms in the (5s5p)^3P_0 state in a crossed-beam optical dipole trap. This is the first measurement of ultracold collision properties of a ^3P_0 level in an alkaline-earth atom or atom with similar electronic structure. S...

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Bibliographic Details
Published in:arXiv.org 2009-05
Main Authors: Traverso, A, Chakraborty, R, Y N Martinez de Escobar, Mickelson, P G, Nagel, S B, Yan, M, Killian, T C
Format: Article
Language:English
Subjects:
Collision rates
Dipoles
Elastic scattering
Electronic structure
Optical properties
Strontium
Online Access:Get full text
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Summary:We report measurement of the inelastic and elastic collision rates for ^{88}Sr atoms in the (5s5p)^3P_0 state in a crossed-beam optical dipole trap. This is the first measurement of ultracold collision properties of a ^3P_0 level in an alkaline-earth atom or atom with similar electronic structure. Since the (5s5p)^3P_0 state is the lowest level of the triplet manifold, large loss rates indicate the importance of principle-quantum-number-changing collisions at short range. We also provide an estimate of the collisional loss rates for the (5s5p){^3P_2} state.
ISSN:2331-8422
DOI:10.48550/arxiv.0809.0936