Why momentum width matters for atom interferometry with Bragg pulses

Szigeti, S. S., Debs, J. E., Hope, J. J., Robins, N. P. and Close, J. D. (2012) Why momentum width matters for atom interferometry with Bragg pulses. New Journal of Physics, 14 023009.1-023009.23. doi:10.1088/1367-2630/14/2/023009


Author Szigeti, S. S.
Debs, J. E.
Hope, J. J.
Robins, N. P.
Close, J. D.
Title Why momentum width matters for atom interferometry with Bragg pulses
Journal name New Journal of Physics   Check publisher's open access policy
ISSN 1367-2630
Publication date 2012-01-01
Year available 2012
Sub-type Article (original research)
DOI 10.1088/1367-2630/14/2/023009
Open Access Status DOI
Volume 14
Start page 023009.1
End page 023009.23
Total pages 23
Place of publication Bristol, United Kingdom
Publisher Institute of Physics
Language eng
Subject 3100 Physics and Astronomy
Abstract We theoretically consider the effect of the atomic source's momentum width on the efficiency of Bragg mirrors and beamsplitters and, more generally, on the phase sensitivity of Bragg pulse atom interferometers. By numerical optimization, we show that an atomic cloud's momentum width places a fundamental upper bound on the maximum transfer efficiency of a Bragg mirror pulse, and furthermore limits the phase sensitivity of a Bragg pulse atom interferometer. We quantify these momentum width effects, and precisely compute how mirror efficiencies and interferometer phase sensitivities vary as functions of Bragg order and source type. Our results and methodology allow for an efficient optimization of Bragg pulses and the comparison of different atomic sources, and will help in the design of large momentum transfer Bragg mirrors and beamsplitters for use in atom-based inertial sensors.
Keyword Physics, Multidisciplinary
Physics
PHYSICS, MULTIDISCIPLINARY
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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Created: Sun, 18 May 2014, 09:13:41 EST by Stuart Szigeti on behalf of Engineered Quantum Systems