On the Diffusion of Atoms in an Optical Lattice
Institution: | Miami University |
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Department: | Physics |
Degree: | MS |
Year: | 2010 |
Keywords: | ATOMS; s0; momentum |
Record ID: | 1887793 |
Full text PDF: | http://rave.ohiolink.edu/etdc/view?acc_num=miami1271207146 |
We present a semi-classical treatment of an atom with a Zeeman substructure and acorresponding J = 1/2 to J = 3/2 angular momentum transition in an optical latticeformed by two counter propagating laser beams with orthogonal polarizations. Waitingtime functions of emitted photons are related to the motion of the atom in the lattice. Our semi-classical model is shown to be in agreement with previous results. Additionally, we find that the final temperature of the atom decreases as the detuning increases and increases as the saturation intensity increases. The diffusion constant is found to decrease with increasing detuning. Alternatively, the diffusion constant increases as the saturation intensity increases and also as the initial momentum increases.