Decay and Revival of Phase Coherence of a Bose-Einstein Condensate in a One-Dimensional Lattice

Published

March 1, 2003

Author(s)

O Morsch, J H. Muller, D Ciampini, M Cristiani, P B. Blakie, Carl J. Williams, Paul S. Julienne, E Arimondo

Abstract

The mode structure of a Bose-Einstein condensate non-adiabatically loaded into a one-dimensional optical lattice is studied by analyzing the visibility of the interference pattern as well as the radial profile of the condensate after a time-of-flight. A simple model is proposed that predicts the short-time decrease of the visibility as a function of the condensate parameters. In the radial direction, heavily damped oscillations are observed, as well as an increase in the condensate temperature. These findings are interpreted as a re-thermalization due to dissipation of the initial condensate excitations into high-lying modes.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

67

Issue

No. 3

Pub Type

Journals

Keywords

Bose-Einstein Condensates, nonadiabatic dynamics, optical lattices

Citation

Morsch, O. , Muller, J. , Ciampini, D. , Cristiani, M. , Blakie, P. , Williams, C. , Julienne, P. and Arimondo, E. (2003), Decay and Revival of Phase Coherence of a Bose-Einstein Condensate in a One-Dimensional Lattice, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed December 5, 2024)