An Optically Plugged Quadrupole Trap for Bose-Einstein Condensates

Abstract

We created sodium Bose-Einstein condensates in an optically plugged quadrupole magnetic trap (OPT). A focused, 532nm laser beam repelled atoms from the coil center where Majorana loss is significant. We produced condensates of up to $3\times 10^7$ atoms, a factor of 60 improvement over previous work [1], a number comparable to the best all-magnetic traps, and transferred up to $9\times 10^6$ atoms into a purely optical trap. Due to the tight axial confinement and azimuthal symmetry of the quadrupole coils, the OPT shows promise for creating Bose-Einstein condensates in a ring geometry.

References in corpus (5)

• Theory of Bose-Einstein condensation in trapped gases
• Optical Confinement of a Bose-Einstein Condensate
• All Optical Formation of an Atomic Bose-Einstein Condensate
• All-Optical Production of a Degenerate Fermi Gas
• Sodium Bose-Einstein Condensates in the F=2 State in a Large-volume Optical Trap

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