Rivlin, T;
McKemmish, LK;
Tennyson, J;
(2019)
Low-Temperature Scattering with the R-Matrix Method: The Morse Potential.
In: Deshmukh, PC and Krishnakumar, E and Fritzsche, S and Krishnamurthy, M and Majumder, S, (eds.)
Quantum Collisions and Confinement of Atomic and Molecular Species, and Photons: Select Proceedings of the 7th Topical Conference of ISAMP 2018.
(pp. pp. 257-273).
Springer: Singapore.
Preview |
Text
1810.03475v1.pdf - Accepted Version Download (830kB) | Preview |
Abstract
Experiments are starting to probe collisions and chemical reactions between atoms and molecules at ultralow temperatures. We have developed a new theoretical procedure for studying these collisions using the R-matrix method. Here, this method is tested for the atom—atom collisions described by a Morse potential. Analytic solutions for continuum states of the Morse potential are derived and compared with numerical results computed using an R-matrix method, where the inner region wavefunctions are obtained using a standard nuclear motion algorithm. Results are given for eigenphases and scattering lengths. Excellent agreement is obtained in all cases. Progress in developing a general procedure for treating ultralow energy reactive and non-reactive collisions is discussed.
| Type: | Proceedings paper |
|---|---|
| Title: | Low-Temperature Scattering with the R-Matrix Method: The Morse Potential |
| Event: | 7th Topical Conference of ISAMP 2018 |
| ISBN-13: | 978-981-13-9968-8 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/978-981-13-9969-5_25 |
| Publisher version: | https://doi.org/10.1007/978-981-13-9969-5_25 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Quantum collisions, Spectroscopy of atoms and molecules, Wigner time delay, Laser cooling, Bose-Einstein condensates, Atomic clocks, Quantum computing, Photoionization, Topical conference of ISAMP |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10088932 |
Archive Staff Only
 |
View Item |
