2015/05/31 by Shuyu Zhou, David Groswasser, Mark Keil +3 · 5 citations
Chemistry · Physics and Astronomy · #Atomic and Subatomic Physics Research #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Crystallography #Imaging phantom #Lattice (music) #Optics #Physics #Quantum, superfluid, helium dynamics #physics.atom-ph
paper · pdf · doi:10.1103/physreva.93.063615
published in Physical Review A 93(6) (American Physical Society) · 15 pages, 14 figures, revised for final publication. This manuscript includes in-depth analysis of the data presented in arXiv:1502.01605
arxiv created 2016/06/13 · openalex publication_date 2016/06/13 · arxiv updated 2016/06/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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\phantom\rule0.16em0ex\ensuremathμm), and even when the surface is at room temperature, spatial coherence persists for a relatively long time (\ensuremath≥\phantom\rule0.16em0ex500\phantom\rule0.16em0exms). 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.