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A squeezed field is one with phase-sensitive quantum fluctuations, which, at certain phase angles are less than those of a perfectly coherent field, or of “no” field at all (the vacuum state). Early theoretical work [1–7] (for a historical note on discovery of squeezed states see [8]) in the 1960’s and 1970’s led in the mid-1980’s to the understanding that quantum fluctuations can be reduced below...
We present a first-principles derivation of spatial atomic-sublevel decoherence near dielectric and metallic surfaces. We find that for small lateral separations of the atom’s possible positions, the spatial decoherence decreases quadratically with the separation and inversely to the squared atom-surface distance. In view of potential miniaturization of atom optics, we also present preliminary results...
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