Construction of localized atomic wave packets

TL;DR

This paper demonstrates how to create and control highly localized atomic wave packets, or solitons, in Bose-Einstein condensates by varying trap frequencies, enabling potential applications like pulsed atomic lasers.

Contribution

It introduces a method to generate and manipulate localized solitons in BECs through trap frequency modulation, offering new control over atomic wave packet dynamics.

Findings

Localized solitons can be created in lower dimensional BECs.

Complete control over soliton spatio-temporal dynamics is achievable.

Comparison shows different behaviors with varying trap frequencies.

Abstract

It is shown that highly localized solitons can be created in lower dimensional Bose-Einstein condensates (BEC), trapped in a regular harmonic trap, by temporally varying the trap frequency. A BEC trapped in such a trap can be effectively used to construct a pulsed atomic laser emitting coherent atomic wave packets. It is also shown that one has complete control over the spatio-temporal dynamics of the solitons. The dynamics of these solitons are compared with those constructed in a BEC where the trap frequency is constant.