Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-04-15
Phys. Rev. A 72, 045602 (2005)
Physics
Condensed Matter
Other Condensed Matter
4 pages, 2 figures (to be published in Phys. Rev. A)
Scientific paper
10.1103/PhysRevA.72.045602
Based on a two-mode boson model, we study nonclassical properties of the atom-molecule Bose-Einstein condensate. The effects of nonlinear collisions on the dynamics of the molecular formation is studied both in classical and quantum treatments. We find that the conversion from atoms to molecules can be suppressed strongly due to nonlinearity-induced localization of the atomic population. In addition, we study statistical properties of the atom-molecule condensed system by calculating the intensity correlation functions numerically. We find that the effect of nonlinearity leads to the appearance of superchaotic molecular pulses, while maintaining the atomic field sub-Poissonian. The joint quantum statistical properties of the atoms and the molecules always show anti-bunching.
Jin Guang-Ri
Kim Chul Koo
Nahm Kyun
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