Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/90101

Title

Asymmetrical two-dimensional magnetic lattices for ultracold atoms

Author(s)

Abdelrahman, A.;  Vasiliev, M.;  Alameh, K.;  Hannaford, P.

Abstract

A simple method for implementing an asymmetrical two-dimensional magnetic lattice is proposed. The asymmetrical two-dimensional magnetic lattice is created by periodically distributing nonzero magnetic minima across the surface of a magnetic thin film, where the magnetic patterns are formed by milling nxn square holes on the surface of the film. The method is proposed for trapping and confining quantum degenerate gases, such as Bose-Einstein condensates and ultracold Fermi gases, prepared in low-magnetic-field-seeking states. Analytical expressions and numerical simulation results of the magnetic local minima are shown where we analyze the effect of changing the magnetic lattice parameters, such as the separation of the holes, the hole size, and external bias magnetic fields, to maintain and locate the nonzero local minima at a suitable distance above the film surface to avoid the effect of Majorana spin flips and the Casimir-Polder potential.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy

Source

Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 82, no. 1 (Jul 2010), paper no. 012320

Publication year

2010

FOR Code(s)

0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics;  0204 Condensed Matter Physics;  0205 Optical Physics

Keyword(s)

Bose-Einstein condensation;  Magnetic lattices;  Quantum degenerate gases;  Ultracold atoms

Publisher

American Physical Society

ISSN

1050-2947

Publisher URL

http://dx.doi.org/10.1103/PhysRevA.82.012320

Copyright

Copyright © 2010 The American Physical Society.

Peer reviewed