Controllable diffusion of cold atoms in a harmonically driven and tilted optical lattice: Decoherence by spontaneous emission
نویسندگان
چکیده
We have studied some transport properties of cold atoms in an accelerated optical lattice in the presence of decohering effects due to spontaneous emission. One new feature added is the effect of an external AC drive. As a result we obtain a tunable diffusion coefficient and it’s nonlinear enhancement with increasing drive amplitude. We report an interesting maximum diffusion condition. PACS numbers: 03.75.-b,03.65.Yz,42.50.Vk,32.80.Pj
منابع مشابه
Controllable diffusion of cold atoms in a harmonically driven and tilted optical lattice: Decoherence by spontaneous emission Controllable Diffusion of Cold Atoms
The cold atoms on optical lattices provide a paradigmatic model to test some novel quantum phenomena predicted half century back for metallic systems[1,2]. With the advancements in cold atom physics and optical laser technology, it is now possible to precisely control and measure various physical parameters. Cold atoms on optical lattices constitute clean quantum systems as compared to solid st...
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