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E M Wright, J Arlt, and K Dholakia (2001)
Toroidal optical dipole traps for atomic Bose-Einstein condensates using Laguerre-Gaussian beams
Phys. Review A 6301:art. no.–013608.
We theoretically investigate the use of red-detuned
Laguerre- Gaussian (LG) laser beams of varying azimuthal mode
index for producing toroidal optical dipole traps in two-
dimensional atomic Bose-Einstein condensates. Higher-order LG
beams provide deeper potential wells and tighter confinement
for a fixed toroid radius and laser power. Numerical
simulations of the loading of the toroidal trap from a
variety of initial conditions are also given.
doi:10.1103/PhysRevA.63.013608