Scientific Results

Atom Interferometry with the Sr Optical Clock Transition

Year: 2017

Authors: Hu L., Poli N., Salvi L., Tino GM.

Autors Affiliation: [Poli, Nicola; Tino, Guglielmo M.] Univ Firenze, Dipartimento Fis & Astron, INFN, Sez Firenze, Via Sansone 1, I-50019 Sesto Fiorentino, Italy.
Univ Firenze, INFN, Sez Firenze, LENS, Via Sansone 1, I-50019 Sesto Fiorentino, Italy.
[Hu, Liang] Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy.
[Poli, Nicola] CNR INO, Florence, Italy.
[Tino, Guglielmo M.] CNR IFAC, Sesto Fiorentino, Italy.

Abstract: 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.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 119 (26)      Pages from: 263601-1  to: 263601-5

KeyWords: lattice clock; spectroscopy; frequency; gravity; path
DOI: 10.1103/PhysRevLett.119.263601

Citations: 10
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English