Journal
PHYSICAL REVIEW LETTERS
Volume 119, Issue 26, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.263601
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Funding
- Italian Ministry of Education, University and Research (MIUR) under PRIN
- Kayser Italia
- Initial Training Network (ITN) - European Commission's 7th Framework Programme [607493]
- Italian Ministry of Education, University and Research (MIUR) under the Progetto Premiale Interferometro Atomico
- INFN
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We report on the realization of a matter-wave interferometer based on single-photon interaction on the ultranarrow optical clock transition of strontium atoms. We experimentally demonstrate its operation as a gravimeter and as a gravity gradiometer. No reduction of interferometric contrast was observed for a total interferometer time up to similar to 10 ms, limited by geometric constraints of the apparatus. Single-photon interferometers represent a new class of high-precision sensors that could be used for the detection of gravitational waves in so far unexplored frequency ranges and to enlighten the boundary between quantum mechanics and general relativity.
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