Europhys. Lett.
Volume 76, Number 2, October 2006
Page(s) 196 - 202
Section General
Published online 13 September 2006
Europhys. Lett., 76 (2), pp. 196-202 (2006)
DOI: 10.1209/epl/i2006-10260-0

How different are multiatom quantum solitons from mean-field solitons?

I. E. Mazets1, 2 and G. Kurizki1

1  Department of Chemical Physics, Weizmann Institute of Science Rehovot 76100, Israel
2  Ioffe Physico-Technical Institute - St. Petersburg 194021, Russia

received 29 April 2006; accepted in final form 25 August 2006
published online 13 September 2006

We theoretically investigate the free dispersion, scattering and disintegration of an N-particle quantum soliton by Bragg light pulses, comparing the exact quantum result with its quasiclassical (mean-field) limit. Remarkably, we find that the correlation properties of a quantum soliton approach the (mean-field) limit very rapidly as the particle number N grows. A modest discrepancy between the classical and quantum results is observed for N=3.

03.75.-b - Matter waves.
05.30.Jp - Boson systems.
42.65.Tg - Optical solitons; nonlinear guided waves.

© EDP Sciences 2006