Interactions and dynamics in Li+Li2 ultracold collisions

2007/03/31 by Marko T. Cvitas, Marko T. Cvitaš, Pavel Soldán +5 · 2 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #physics.atom-ph #physics.chem-ph

paper · pdf · doi:10.1063/1.2752162

21 pages, 27 figures. Version 2 is final version as accepted for publication in J. Chem. Phys

arxiv created 2007/06/01 · openalex publication_date 2007/08/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A potential energy surface for the lowest quartet electronic state ((4)A(')) of lithium trimer is developed and used to study spin-polarized Li+Li(2) collisions at ultralow kinetic energies. The potential energy surface allows barrierless atom exchange reactions. Elastic and inelastic cross sections are calculated for collisions involving a variety of rovibrational states of Li(2). Inelastic collisions are responsible for trap loss in molecule production experiments. Isotope effects and the sensitivity of the results to details of the potential energy surface are investigated. It is found that for vibrationally excited states, the cross sections are only quite weakly dependent on details of the potential energy surface.

Citations

• Formation of Quantum-Degenerate Sodium Molecules
• Feshbach resonances in ultracold atomic and molecular collisions: threshold behaviour and suppression of poles in scattering lengths
• Weakly Bound Dimers of Fermionic Atoms
• The calculation of small molecular interactions by the differences of separate total energies. Some procedures with reduced errors
• Observation of Bose-Einstein Condensation of Molecules

Cited by

• Reactions of ultracold alkali-metal dimers
• Feshbach resonances in ultracold gases