TY - JOUR
T1 - Formation of molecules in an expanding Bose-Einstein condensate
AU - Yurovsky, V. A.
AU - Ben-Reuven, A.
PY - 2004/7
Y1 - 2004/7
N2 - The formation of hybrid atom-molecules in an expanding Bose-Einstein condensates (BEC) with application to experiments of Rempe group on 87Rb, was analyzed. In the case of 87Rb, using a weak Feschbach resonance, a mean-field (MF) approach was used to describe molecular association process. It was observed that non-MF calculations which used parametric approximation (PA) method, produced energy spectrum of entangled noncondensate atom pairs formed by molecular dissociation in forward sweep, following the association. The results show that optimal conditions for formation of molecular BEC in backward sweep exhibits existence of an optimal ramp speed which depends on resonance strength and initial gas density.
AB - The formation of hybrid atom-molecules in an expanding Bose-Einstein condensates (BEC) with application to experiments of Rempe group on 87Rb, was analyzed. In the case of 87Rb, using a weak Feschbach resonance, a mean-field (MF) approach was used to describe molecular association process. It was observed that non-MF calculations which used parametric approximation (PA) method, produced energy spectrum of entangled noncondensate atom pairs formed by molecular dissociation in forward sweep, following the association. The results show that optimal conditions for formation of molecular BEC in backward sweep exhibits existence of an optimal ramp speed which depends on resonance strength and initial gas density.
UR - http://www.scopus.com/inward/record.url?scp=19244365467&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.70.013613
DO - 10.1103/PhysRevA.70.013613
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AN - SCOPUS:19244365467
SN - 1050-2947
VL - 70
SP - 013613-1-013613-5
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 1
M1 - 013613
ER -