Abstract
We compare the sensitivity of an interferometric measurement of gravity using a freely-falling, lasing atomic source to that achieved with a cold, thermal atomic source. We observe a higher fringe visibility with the lasing source, also the highest yet observed in such a configuration. We improve sensitivity by exploiting large momentum transfer beamsplitting (LMT), and discuss briefly the advantages of using a lasing atomic source for LMT. Most importantly, we measure no degradation of the sensitivity of our interferometer due to interaction induced dephasing at our limit of precision. Using a simple model, we verify this observation and project to beyond state-of-the-art sensitivities, concluding that with reasonable experimental parameters, interaction induced dephasing will not limit the sensitivity of inertial measurements using freely-falling, lasing atomic sources.
Original language | English |
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Title of host publication | International Quantum Electronics Conference (IQEC 2011) and Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR 2011) |
Subtitle of host publication | Incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology: Sydney, Australia, 28 August – 1 September 2011 |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 2082-2084 |
Number of pages | 3 |
ISBN (Print) | 9780977565771 |
DOIs | |
Publication status | Published - 2011 |
Event | International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011 - Sydney Convention and Exhibition Centre, Sydney, Australia Duration: 28 Aug 2011 → 1 Sept 2011 https://www.osapublishing.org/conference.cfm?meetingid=89&yr=2011 (Proceedings) |
Conference
Conference | International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011 |
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Abbreviated title | IQEC/CLEO-PR 2011 |
Country/Territory | Australia |
City | Sydney |
Period | 28/08/11 → 1/09/11 |
Other | Joint-held conference |
Internet address |