A white-light trap for Bose-Einstein condensates

TL;DR

This paper introduces a new white-light interference trap for Bose-Einstein condensates, enabling tight confinement and long lifetimes suitable for studying quantum interactions and information processing.

Contribution

It presents a novel trapping method using white-light interference fringes, achieving high confinement frequencies with shallow trap depths.

Findings

Confinement frequencies of tens of kHz are achievable.

Trap lifetimes of around 10 seconds are estimated.

The trap allows for tunneling studies and quantum information applications.

Abstract

We propose a novel method for trapping Bose-condensed atoms using a white-light interference fringe. Confinement frequencies of tens of kHz can be achieved in conjunction with trap depths of only a few micro-K. We estimate that lifetimes on the order of 10 s can be achieved for small numbers of atoms. The tight confinement and shallow depth permit tunneling processes to be used for studying interaction effects and for applications in quantum information.