Published in Physical Review A, Volume 70, Issue 3, January 1, 2004, pages 032302-1-032302-4.
Copyright © 2004 American Physical Society. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review A and may be found at http://dx.doi.org/10.1103/PhysRevA.70.032302.
NOTE: At the time of publication, the author Katharina Gillen-Christandl was not yet affiliated with Cal Poly.
We propose a way to make arrays of optical frequency dipole-force microtraps for cold atoms above a dielectric substrate. Traps are nodes in the evanescent wave fields above an optical waveguide resulting from interference of different waveguide modes. The traps have features sought in developing neutral atom based architectures for quantum computing: ∼1 mW of laser power yields very tight traps 150 nm above a waveguide with trap vibrational frequencies ∼1 MHz and vibrational ground state sizes ∼10 nm. The arrays are scalable and allow addressing of individual sites for quantum logic operations.