McDonald, GordonKeal, HannahAltin, PaulDebs, JohnBennetts, ShayneNoschang Kuhn, CarlosHardman, KyleJohnsson, MattiasClose, JohnRobins, Nicholas2015-12-131050-2947http://hdl.handle.net/1885/70709We demonstrate a horizontal, linearly guided Mach-Zehnder atom interferometer in an optical waveguide. Intended as a proof-of-principle experiment, the interferometer utilizes a Bose-Einstein condensate in the magnetically insensitive F=1,mF=0 state of 87Rb as an acceleration-sensitive test mass. We achieve a modest sensitivity to acceleration of Δa=7×10-4 m/s2. Our fringe visibility is as high as 38% in this optically guided atom interferometer. We observe a time of flight in the waveguide of over 0.5 s, demonstrating the utility of our optical guide for future sensors.Author/s retain copyrightKeywords: Atom interferometer; Bose-Einstein condensates; Fringe visibilities; Mach-Zehnder; Proof-of-principle experiments; Time of flight; Rubidium; Statistical mechanics; Interferometers201310.1103/PhysRevA.87.0136322016-02-24