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Article
The Macroscopic Quantum Phase of Ultracold Degenerate Gases in the Asymmetrical Two-Dimensional Magnetic Lattice
ECU Publications 2011
  • Ahmed M Abdelrahman, Edith Cowan University
  • Mikhail Vasiliev, Edith Cowan University
  • Karmal Alameh, Edith Cowan University
Publication Date
1-1-2011
Document Type
Journal Article
Publisher
Pergamon
Faculty
Faculty of Computing, Health and Science
School
Electron Science Research Institute (ESRI)
RAS ID
12384
Comments
This article was originally published as: 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. Original article 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.
Disciplines
Citation Information
Ahmed M Abdelrahman, Mikhail Vasiliev and Karmal Alameh. "The Macroscopic Quantum Phase of Ultracold Degenerate Gases in the Asymmetrical Two-Dimensional Magnetic Lattice" (2011)
Available at: http://works.bepress.com/mikhail_vasiliev/6/