Spinor atom-molecule conversion via laser-induced three-body recombination

H. Jing, Y. Deng, P. Meystre

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

We study the theory of several aspects of the dynamics of coherent atom-molecule conversion in spin-one Bose-Einstein condensates. Specifically, we discuss how, for a suitable dark-state condition, the interplay of spin-exchange collisions and photo association leads to the stable creation of an atom-molecule pair from three initial spin-zero atoms. This process involves two two-body interactions and can be intuitively viewed as an effective three-body recombination. We investigate the relative roles of photo association and of the initial magnetization in the "resonant" case, where the dark-state condition is perfectly satisfied. We also consider the "nonresonant" case, where that condition is satisfied either only approximately-the so-called adiabatic case-or not at all. In the adiabatic case, we derive an effective nonrigid pendulum model that allows one to conveniently discuss the onset of an antiferromagnetic instability in an "atom-molecule pendulum," as well as large-amplitude pair oscillations and atom-molecule entanglement.

Original languageEnglish (US)
Article number043601
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume83
Issue number4
DOIs
StatePublished - Apr 1 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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