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arXiv · 0901.1819

Noise-Immune Conjugate Large-Area Atom Interferometers

Sven Herrmann·Sheng-wey Chiow·Steven Chu·Holger Mueller
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Abstract

We present a pair of simultaneous conjugate Ramsey-Borde atom interferometers (SCI) using large (20\hbar k)-momentum transfer (LMT) beam splitters, where \hbar k is the photon momentum. Simultaneous operation allows for common-mode rejection of vibrational noise. This allows us to surpass the enclosed space-time area of previous interferometers with a splitting of 20\hbar k by a factor of 2,500. Among applications, we demonstrate a 3.4 ppb resolution in the fine structure constant and discuss tests of fundamental laws of physics.

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Sven Herrmann, Sheng-wey Chiow, Steven Chu, Holger Mueller. 2009-01-13. Noise-Immune Conjugate Large-Area Atom Interferometers. https://doi.org/10.1103/physrevlett.103.050402

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