Robust spatial coherence $5\phantom{\rule{0.16em}{0ex}}\ensuremath{\mu}\mathrm{m}$ from a room-temperature atom chip

Shuyu Zhou, David Groswasser, Mark Keil, Yonathan Japha, Ron Folman

Research output: Contribution to journalArticlepeer-review


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 μm), and even when the surface is at room temperature, spatial coherence persists for a relatively long time ( 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, interatomic interactions, and external noise.
Original languageEnglish
Pages (from-to)63615
JournalPhys. Rev. A
Issue number6
StatePublished - Jun 2016


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