Title

The Macroscopic Quantum Phase of Ultracold Degenerate Gases in the Asymmetrical Two-Dimensional Magnetic Lattice

Document Type

Journal Article

Publisher

Pergamon

Faculty

Faculty of Computing, Health and Science

School

Electron Science Research Institute (ESRI)

RAS ID

12384

Comments

Abdelrahman, A. , Vasiliev, M. , & Alameh, K. (2011). The macroscopic quantum phase of ultracold degenerate gases in the asymmetrical two-dimensional magnetic lattice. Solid State Communications, 151(11), 859-863. Available here

Abstract

We investigate the existence of the macroscopic quantum phase in trapped ultracold quantum degenerate gases in an asymmetrical two-dimensional magnetic lattice. We show the key to adiabatically control the tunneling in the new two-dimensional magnetic lattice by means of external magnetic bias fields. In solving the system of coupled time-dependent differential equations, described here by the Boson Josephson Junctions (BJJs), we used an order parameter that includes both time-dependent variational parameters to describe the fractional population at each lattice site and the phase difference to quantify the macroscopic quantum phase signature. A dynamical oscillation of the fractional population and the phase difference at each individual lattice site is observed when solving the BJJs system.

DOI

10.1016/j.ssc.2011.03.010

 
COinS
 

Link to publisher version (DOI)

10.1016/j.ssc.2011.03.010