Collective oscillations of two colliding bose-einstein condensates
Two 87Rb condensates ( F = 2, m(f) = 2, and m(f) = 1) are produced in highly displaced harmonic traps and the collective dynamical behavior is investigated. The mutual interaction between the two condensates is evidenced in the center-of-mass oscillations as a frequency shift of 6.4(3)%. Calculations based on a mean-field theory well describe the observed effects of periodical collisions both on the center-of-mass motion and on the shape oscillations.
Maddaloni
P
INFM-European Laboratory for Non linear Spectroscopy (LENS) and Dipartimento di Fisica, Universita di Firenze, Largo E. Fermi 2, I-50125 Firenze, Italy.
Modugno
M
Fort
C
Minardi
F
Inguscio
M