Document Type

Conference Proceeding

Publisher

IEEE Press

Faculty

Computing, Health and Science

School

Electron Science Research Institute (ESRI)

RAS ID

10237

Comments

This article was originally published as: Abdelrahman, A., Alameh, K., & Hannford, P. (2010). Adiabatic coherent quantum tunneling of ultracold atoms trapped in an asymmetrical two-dimensional magnetic lattices. Proceedings of High-Capacity Optical Networks and Enabling Technologies (HONET). (pp. 120-124). Alexandria, Egypt. IEEE Press. Original article available here

© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Abstract

We propose a new method to realize a two-dimensional magnetic lattice, having two different configurations of asymmetric magnetic lattice, which exhibits magnetic band gap structure, and a symmetric magnetic lattice. We also describe the tunneling mechanisms of magnetically trapped ultracold atoms, prepared in a degenerate quantum gas such as Bose-Einstein Condensate (BEC). A coherent quantum tunneling of ultracold atoms between the sites of the asymmetrical magnetic lattice can be realized which induces the adiabatically controlled dc Josephson current. At critical phase transitions, namely at certain values of site phase difference and population fraction, a plasma oscillation can be observed in which it forms a discharging Josephson state to be used as coherently coupled n quantum bits.

DOI

10.1109/HONET.2009.5423089

Access Rights

free_to_read

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Link to publisher version (DOI)

10.1109/HONET.2009.5423089