Collective Oscillations of Two Colliding Bose-Einstein Condensates

P. Maddaloni; M. Modugno; C. Fort; F. Minardi; M. Inguscio

doi:10.1103/PhysRevLett.85.2413

Collective Oscillations of Two Colliding Bose-Einstein Condensates

P. Maddaloni, M. Modugno, C. Fort, F. Minardi, and M. Inguscio

Phys. Rev. Lett. 85, 2413 – Published 18 September 2000

Abstract

Two $^{87} Rb$ 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.

Received 24 March 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.2413

Authors & Affiliations

P. Maddaloni^*, M. Modugno, C. Fort, F. Minardi, and M. Inguscio

INFM–European Laboratory for Non linear Spectroscopy (LENS) and Dipartimento di Fisica, Università di Firenze, Largo E. Fermi 2, I-50125 Firenze, Italy