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Optimal Matterwave Gravimetry

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arxiv 1710.06340 v3 pith:RLTT4MGI submitted 2017-10-17 quant-ph cond-mat.quant-gas

Michail Kritsotakis , Stuart S. Szigeti , Jacob A. Dunningham , Simon A. Haine This is my paper · ORCID
classification quant-phcond-mat.quant-gas
keywords matterwavesensitivitysensorscalculatecapableclassicalconsiderablycurrent
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We calculate quantum and classical Fisher informations for gravity sensors based on matterwave interference, and find that current Mach-Zehnder interferometry is not optimally extracting the full metrological potential of these sensors. We show that by making measurements that resolve either the momentum or the position we can considerably improve the sensitivity. We also provide a simple modification that is capable of more than doubling the sensitivity.

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