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Atom trapping and two-dimensional Bose-Einstein condensates in field-induced adiabatic potentials

O. Zobay·B. M. Garraway
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Abstract

We discuss a method to create two-dimensional traps as well as atomic shell, or bubble, states for a Bose-Einstein condensate initially prepared in a conventional magnetic trap. The scheme relies on the use of time-dependent, radio frequency-induced adiabatic potentials. These are shown to form a versatile and robust tool to generate novel trapping potentials. Our shell states take the form of thin, highly stable matter-wave bubbles and can serve as stepping-stones to prepare atoms in highly-excited trap eigenstates or to study `collapse and revival phenomena'. Their creation requires gravitational effects to be compensated by applying additional optical dipole potentials. However, in our scheme gravitation can also be exploited to provide a route to two-dimensional atom trapping. We demonstrate the loading process for such a trap and examine experimental conditions under which a 2D condensate may be prepared.

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O. Zobay, B. M. Garraway. 2003-06-06. Atom trapping and two-dimensional Bose-Einstein condensates in field-induced adiabatic potentials. https://doi.org/10.1103/physreva.69.023605

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