New guiding structures for atom interferometry with cold atoms

Frank A. Narducci, Jon P. Davis

J. Arlt, G. Birkl, Ernst Maria Rasel +1 more

Aashish Kafle, Sheng‐wey Chiow, Nan Yu

John H. Burke

This paper focuses on several key ideas to using atom interferometry to detect rotation within the context of an atom trap or “guide”. I discuss shortcomings of traditional free space light pulse atom interferometry that the advantages of guided light pulse atom interferometry can mitigate and under what conditions that strategy is possible. There is discussion of requirements for the light pulses, and the properties of the waveguide that will be needed for guided atom interferometry to successfully improve on the capability of free space light pulse atom interferometry.

Jin Wang, Lin Zhou, Runbing Li +2 more

Changwen Liang, Q. P. Wang, Huankai Zhang +5 more

We propose and demonstrate a novel, to the best of our knowledge, scheme for atom interferometry along the direction deviating an angle from gravity, using slender light pulses that nest around a blue-detuned guiding optical potential (BDGOP). Cold atoms could be uniformly transported through guiding optical potential and interacted coherently by slender light pulses. We analyze the coherence of cold atoms in BDGOP using the Ramsey interference. In comparison to free-falling atom interferometry, the rapid exponential decay of fringe contrast is changed to slower linear decay when subjected to a tilting angle. The contrast could be enhanced approximately fourfold by BDGOP. Our work paves the way for inertial vector measurements based on BDGOP.