| Numéro |
J. Phys. IV France
Volume 116, October 2004
|
|
|---|---|---|
| Page(s) | 265 - 274 | |
| DOI | https://doi.org/10.1051/jp4:2004116016 | |
J. Phys. IV France 116 (2004) 265-274
DOI: 10.1051/jp4:2004116016
Using magnetic chip traps to study Tonks-Girardeau quantum gases
J. Reichel1 and J.H. Thywissen21 Max-Planck-Institut für Quantenoptik and Sektion Physik der Ludwig-Maximilians-Universität, Schellingstr. 4, 80799 München, Germany
2 McLennan Physical Laboratories, University of Toronto, 60 Saint George Street, Toronto, Ontario, M5S 1A7 Canada
Abstract
We discuss the use of microfabricated magnetic traps, or "chip traps," to study
(quasi-)one-dimensional quantum gases. In particular, we discuss the
feasibility of studying the Tonks-Girardeau limit, in which
the gas is strongly interacting. We review the scaling of the
oscillation frequencies of a chip trap, and show that it seems feasible to attain
a Tonks-Girardeau parameter as large as 200. The primary difficulty
of this approach is detection, since the strongly interacting limit
occurs for low densities. We propose a way to "freeze" the
distribution, and then measure it with a single-atom detector. This method
can also be applied to optical dipole traps.
© EDP Sciences 2004