Year: 2004
Type: article
Abstract: We propose a trap for confining cold neutral atoms in a microscopic ring using a magnetoelectrostatic potential. The trapping potential is derived from a combination of a repulsive magnetic field from a hard drive atom mirror and the attractive potential produced by a charged disk patterned on the hard drive surface. We calculate a trap frequency of $[29.7,42.6,62.8]\phantom{\rule{0.3em}{0ex}}\mathrm{kHz}$ and a depth of $[16.1,21.8,21.8]\phantom{\rule{0.3em}{0ex}}\mathrm{MHz}$ for [$^{133}\mathrm{Cs}$, $^{87}\mathrm{Rb}$, $^{40}\mathrm{K}$], and discuss a simple loading scheme and a method for fabrication. This device provides a one-dimensional potential in a ring geometry that may be of interest to the study of trapped quantum degenerate one-dimensional gases.
Source: Physical Review A
Authors: Asa Hopkins, Benjamin Lev, Hideo Mabuchi
Institution: California Institute of Technology
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2085101707