Suppression of Elastic Scattering Loss for Slowly Colliding Bose-Einstein Condensates

Published

August 1, 2001

Author(s)

Y B. Band, J P. Burke, A Simoni, Paul S. Julienne

Abstract

Partial superfluid suppression of the elastic scattering loss in atomic Bose condensed systems is significant when the ratio of the relative velocity of the wavepackets to the critical velocity is set to be close to unity, as in experiments similar to those of Maddaloni et. Al. [4]. A comparison of our three-dimensional simulations of the collision dynamics of two ⁸⁷Rb F=2 condensates in a harmonic trap, one in the M_F=2 state and the other in the M_F = 1 state, show that the reduction of the oscillatory center-of-mass amplitude of the M_F=1 wavepacket results largely due to elastic scattering loss collisions between atoms in the two wavepackets. We show that superfluid suppression of the elastic scattering loss can be studied in detail if the number of atoms in this type of experiment is increased to the range of 0.5-2.0 x 10⁶.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

64

Issue

No. 2

Pub Type

Journals

Keywords

Bose-Einstein condensate, critical velocity, superfluid suppression of elastic scatte

Citation

Band, Y. , Burke, J. , Simoni, A. and Julienne, P. (2001), Suppression of Elastic Scattering Loss for Slowly Colliding Bose-Einstein Condensates, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed October 11, 2025)