TY - JOUR
T1 - Quantum effects on dynamics of instabilities in Bose-Einstein condensates
AU - Yurovsky, V. A.
PY - 2002
Y1 - 2002
N2 - Dynamics of fluctuations in unstable Bose-Einstein condensates is analyzed by the solution of approximate operator equations. In the case of a condensate with a negative scattering length the present treatment describes a delay of collapse, in agreement with recent experiments. In the case of a collision of two condensate wave packets it is shown that quantum effects lead to a Bose enhancement of elastic-scattering losses. In both cases the noncondensate atoms are formed as entangled pairs in squeezed states.
AB - Dynamics of fluctuations in unstable Bose-Einstein condensates is analyzed by the solution of approximate operator equations. In the case of a condensate with a negative scattering length the present treatment describes a delay of collapse, in agreement with recent experiments. In the case of a collision of two condensate wave packets it is shown that quantum effects lead to a Bose enhancement of elastic-scattering losses. In both cases the noncondensate atoms are formed as entangled pairs in squeezed states.
UR - http://www.scopus.com/inward/record.url?scp=85037192807&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.65.033605
DO - 10.1103/PhysRevA.65.033605
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AN - SCOPUS:85037192807
SN - 1050-2947
VL - 65
SP - 033605-1 - 033605-11
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033605
ER -