Eur. Phys. J. D 53, 127-131 (2009)
https://doi.org/10.1140/epjd/e2009-00116-7

Atom interferometers manipulated through the toroidal trap realized by the interference patterns of Laguerre-Gaussian beams

Institute of Optics, Department of Physics, Zhejiang University, 310027, Hangzhou, P.R. China

Corresponding author: ^a qlin@zju.edu.cn

Received: 12 September 2008
Revised: 30 December 2008
Published online: 3 April 2009

Abstract

In this paper, we proposed new constructions of atom interferometers manipulated through the toroidal trap formed by the interference patterns of two co-propagation Laguerre-Gaussian (LG) beams. The coherent splitting and merging of the atomic ensemble, which is essential for the atom interferometer, is realized by the interference pattern of two LG beams. Along the beam propagation direction, a single-well trap is evolved into a double-well trap and then recombined back into a single-well trap, which can be used to form an atom interferometer.