TY - JOUR
T1 - Stability of atomic-molecular coherent states of hybrid Bose-Einstein condensates
AU - Gredeskul, Sergey A.
AU - Kivshar, Yuri S.
PY - 2005/5/1
Y1 - 2005/5/1
N2 - We study the stability of coherent atomic-molecular states of hybrid Bose-Einstein condensates in the framework of the parametrically coupled Gross-Pitaevskii equations with a weak 'short-correlated' noise, also taking into account the self-interaction effects described by the cubic nonlinearity. We show that the stationary states of the hybrid atomic-molecular condensates are much more robust against the effect of noise than the condensate in the critical regime, describing a complete transformation of the atomic fraction into a molecular condensate, where instability develops essentially faster, with the characteristic time proportional to the logarithm of the noise amplitude.
AB - We study the stability of coherent atomic-molecular states of hybrid Bose-Einstein condensates in the framework of the parametrically coupled Gross-Pitaevskii equations with a weak 'short-correlated' noise, also taking into account the self-interaction effects described by the cubic nonlinearity. We show that the stationary states of the hybrid atomic-molecular condensates are much more robust against the effect of noise than the condensate in the critical regime, describing a complete transformation of the atomic fraction into a molecular condensate, where instability develops essentially faster, with the characteristic time proportional to the logarithm of the noise amplitude.
KW - Atomic-molecular mixture
KW - Bose-Einstein condensation
KW - Coherent states
KW - Hybrid condensates
KW - Quantum noise fluctuations
UR - http://www.scopus.com/inward/record.url?scp=18744403724&partnerID=8YFLogxK
U2 - 10.1088/1464-4266/7/5/005
DO - 10.1088/1464-4266/7/5/005
M3 - Article
SN - 1464-4266
VL - 7
SP - 151
EP - 155
JO - Journal of Optics B: Quantum and Semiclassical Optics
JF - Journal of Optics B: Quantum and Semiclassical Optics
IS - 5
ER -