James F.E. Croft
Multichannel quantum defect theory for cold molecular collisions
Croft, James F.E.; Wallis, Alisdair O.G.; Hutson, Jeremy M.; Julienne, Paul S.
Authors
Abstract
Multichannel quantum defect theory (MQDT) is shown to be capable of producing quantitatively accurate results for low-energy atom-molecule scattering calculations. With a suitable choice of reference potential and short-range matching distance, it is possible to define a matrix that encapsulates the short-range collision dynamics and is only weakly dependent on energy and magnetic field. Once this has been produced, calculations at additional energies and fields can be performed at a computational cost that is proportional to the number of channels N and not to N3. MQDT thus provides a promising method for carrying out low-energy molecular scattering calculations on systems where full exploration of the energy dependence and the field dependence is currently impractical.
Citation
Croft, J. F., Wallis, A. O., Hutson, J. M., & Julienne, P. S. (2011). Multichannel quantum defect theory for cold molecular collisions. Physical Review A, 84(4), Article 042703. https://doi.org/10.1103/physreva.84.042703
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 2011 |
Deposit Date | Jun 19, 2013 |
Publicly Available Date | Mar 29, 2024 |
Journal | Physical Review A |
Print ISSN | 1050-2947 |
Electronic ISSN | 1094-1622 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 84 |
Issue | 4 |
Article Number | 042703 |
DOI | https://doi.org/10.1103/physreva.84.042703 |
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Copyright Statement
© 2011 American Physical Society
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