Creation and Alteration of Two Dimensional MOTs
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2008
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Swarthmore College. Dept. of Physics & Astronomy
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Thesis (B.A.)
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en_US
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Full copyright to this work is retained by the student author. It may only be used for non-commercial, research, and educational purposes. All other uses are restricted.
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Abstract
The physics and some practical considerations behind a magneto-optical trap (MOT) are detailed. The possibility ofreplacing the anti-Helmholtz coils in a MOT with two ring-shaped permanent magnets is explored. Instead of being limited to point nulls or traps, this research demonstrates such a substitution can lead to a macroscopic, toroidally shaped magnetic field null appropriate for a MOT. Using numerical simulations, we found that additional electromagnetic coils can vertically translate and expand the ring null as well as break it into several point nulls. Techniques such as these that allow for easy in situ alterations of two dimensional MOTs have several possible applications in cold atom research.