The atom and atom scattering model to control ultracold collisions

2012/06/24 by Hasi Ray, Ray, Hasi · 1 citation
Computer Science · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Mobile Crowdsensing and Crowdsourcing #physics.atom-ph

paper · pdf · doi:10.48550/arxiv.1206.5476

12 pages, 31 figures, 3 tables

openalex publication_date 2012/06/24 · arxiv created 2012/10/07 · arxiv updated 2012/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A modified static exchange model is introduced, it could be useful to control the elastic s-wave scattering length in studying cold-atomic interaction. The theory includes the long-range van der Waals interaction in addition to short-range exchange force. The model is applied on Ps-H system to study the Feshbach resonances e.g. the s-wave elastic phase shifts and the corresponding cross sections at ultracold energies. These are compared with the data obtained using the static exchange model. A very interesting features are observed when we vary the interatomic separation i.e. the strength of dipole-dipole interaction.

Cited by

• The Effect of van der Waals interaction in Elastic Collision between Ps(1s) and H(1s)

Related

• The Effect of van der Waals interaction in Elastic Collision between Ps(1s) and H(1s)
• Analytic description of atomic interaction at ultracold temperatures: The case of a single channel
• Scattering Models for Ultracold Atoms
• Microwave-induced Fano-Feshbach resonances
• Potential and Feshbach s-wave resonances in coupled atomic collision channels