Advertisement

The European Physical Journal D

, Volume 53, Issue 1, pp 33–40 | Cite as

Comparative study of rare gas-H2 triatomic complexes

  • P. BarlettaEmail author
Atomic and Molecular Collisions

Abstract

This paper presents a comparative analysis of complexes made of one rare gas (Rg) atom and molecular hydrogen, for five different Rg atoms. In particular, the vibrational band origins have been calculated, as well as the structural properties of the associated wavefunctions. The study is extended to ultra-cold Rg–H2 collisions, object of a recent experiment aimed at producing ultra-cold H2 [1]. The molecular systems are studied variationally using a simple, yet effective, isotropic trial wavefunction. A large number of potential energy surfaces available from the literature is considered. A comparative analysis shows that differences of up to two orders of magnitude exist for the zero-energy elastic cross sections of the five complexes. Corrections to the isotropic model have also been considered, showing no significant effect.

PACS

34.50.Cx Elastic; ultracold collisions 34.50.-s Scattering of atoms and molecules 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. P. Barletta, J. Tennyson, P. Barker, Phys. Rev. A 78, 052707 (2008)Google Scholar
  2. A.D. Buckingham, P.W. Fowler, J.M. Hutson, Chem. Rev. 88, 963 (1988)Google Scholar
  3. A. McKellar, J. Chem. Phys. 105, 2628 (1996)Google Scholar
  4. C. Bissonnette, C.E. Chuaqui, K.G. Crowell, R.J. Le Roy, R.J. Wheatley, W.J. Meath, J. Chem. Phys. 105, 2639 (1996)Google Scholar
  5. E. Bodo, F. Gianturco, N. Balakrishnan, A. Dalgarno, J. Phys. B: At. Mol. Opt. Phys. 34, 3641 (2004)Google Scholar
  6. M. Qiu et al., Science 311, 1440 (2006)Google Scholar
  7. R.J. Le Roy, J. Van Kranendonk, J. Chem. Phys. 61, 4750 (1974)Google Scholar
  8. R. Barnett, K.B. Whaley, J. Chem. Phys. 96, 2953 (1992)Google Scholar
  9. F.A. Gianturco, T. González-Lezana, G. Delgado-Barrio, P. Villareal, J. Chem. Phys. 122, 084308 (2005)Google Scholar
  10. J.C. Flasher, R.C. Forrey, Phys. Rev. A 65, 032710 (2002)Google Scholar
  11. A. Mack, T.K. Clark, R.C. Forrey, N. Balakrishnan, T.G. Lee, P.C. Stancil, Phys. Rev. A 74, 052718 (2006)Google Scholar
  12. Y. Lin, C. Lin, J. Phys. B: At. Mol. Opt. Phys. 32, 4877 (1999)Google Scholar
  13. Y. Xiao, B. Poirer, J. Phys. Chem. A 110, 5475 (2006)Google Scholar
  14. R. Moszynski, B. Jeziorski, P. Wormer, A. van der Avoird, Chem. Phys. Lett. 221, 161 (1994)Google Scholar
  15. H. Wei, R.J. Le Roy, R. Wheatley, W.J. Meath, J. Chem. Phys. 122, 084321 (2005)Google Scholar
  16. Y. Zhou, D. Xie, J. Chem. Phys. 123, 134323 (2005)Google Scholar
  17. W. Rodwell, G. Scoles, J. Phys. Chem. 86, 1053 (1982)Google Scholar
  18. R.J. Le Roy, J.M. Hutson, J. Chem. Phys. 86, 837 (1987)Google Scholar
  19. A.I. Boothroyd, P.G. Martin, M.R. Peterson, J. Chem. Phys. 119, 3187 (2003)Google Scholar
  20. B.D. Esry, C.D. Lin, C.H. Greene, Phys. Rev. A 54, 394 (1996)Google Scholar
  21. P. Barletta, A. Kievsky, Phys. Rev. A 64, 042514 (2001)Google Scholar
  22. A. Jensen, K. Riisager, D. Fedorov, E. Garrido, Rev. Mod. Phys. 76, 215 (2004)Google Scholar
  23. D.W. Schwenke, J. Chem. Phys. 89, 2076 (1988)Google Scholar
  24. A. Kievsky, Nucl. Phys. A 624, 125 (1997)Google Scholar
  25. J.R. Taylor, Scattering theory: the quantum theory of nonrelativistic collisions (Dover Publications, 2006)Google Scholar
  26. M. Lombardi, P. Barletta, A. Kievsky, Phys. Rev. A 70, 032503 (2004)Google Scholar
  27. P. Muchnik, A. Russek, J. Chem. Phys. 100, 4336 (1994)Google Scholar
  28. N. Balakrishnan, R.C. Forrey, A. Dalgarno, Phys. Rev. Lett. 80, 3224 (1998)Google Scholar
  29. D.W. Schwenke, S.P. Walch, P. Taylor, J. Chem. Phys. 98, 4738 (1993)Google Scholar
  30. N. Uudus, S. Magaki, N. Balakrishnan, J. Chem. Phys. 122, 024304 (2005)Google Scholar
  31. J. Andres, U. Buck, F. Huisken, J. Scheleusener, F. Torello, J. Chem. Phys. 73, 5620 (1980)Google Scholar
  32. P.E.S. Wormer, J.P.C. Bernards, M.C.M. Gribnau, Chem. Phys. 81, 1 (1983)Google Scholar
  33. J. Tennyson, B.T. Sutcliffe, J. Chem. Phys. 77, 4061 (1982)Google Scholar
  34. http://scienide.uwaterloo.ca/%7Erleroy/potentials/H2-Rg/Google Scholar

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Department of Physics and AstronomyUniversity College LondonLondonUK

Personalised recommendations