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arXiv · 1505.02654

Robust spatial coherence 5$\,\mu$m from a room-temperature atom chip

Shuyu Zhou·David Groswasser·Mark Keil·Yonathan Japha·Ron Folman
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Abstract

We study spatial coherence near a classical environment by loading a Bose-Einstein condensate into a magnetic lattice potential and observing diffraction. Even very close to a surface (5$\,\mu$m), and even when the surface is at room temperature, spatial coherence persists for a relatively long time ($\ge$500$\,$ms). In addition, the observed spatial coherence extends over several lattice sites, a significantly greater distance than the atom-surface separation. This opens the door for atomic circuits, and may help elucidate the interplay between spatial dephasing, inter-atomic interactions, and external noise.

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Shuyu Zhou, David Groswasser, Mark Keil, Yonathan Japha, Ron Folman. 2015-05-11. Robust spatial coherence 5$\,\mu$m from a room-temperature atom chip. https://doi.org/10.1103/physreva.93.063615

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