Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium
| Autor: | Benjamin E. Garber, Megan Nantel, Yijun Jiang, Thomas Wilkason, Hunter Swan, Jason M. Hogan, Connor M. Holland, Samuel P. Carman, Jan Rudolph |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum Physics Atom interferometer Atomic Physics (physics.atom-ph) Gravitational wave Momentum transfer FOS: Physical sciences General Physics and Astronomy 01 natural sciences Physics - Atomic Physics Momentum Interferometry Excited state 0103 physical sciences Physics::Atomic Physics Atomic physics Quantum Physics (quant-ph) 010306 general physics Realization (systems) Line (formation) |
| Zdroj: | Physical Review Letters. 124 |
| ISSN: | 1079-7114 0031-9007 |
| Popis: | We report the first realization of large momentum transfer (LMT) clock atom interferometry. Using single-photon interactions on the strontium ${}^1S_0 - {}^3P_1$ transition, we demonstrate Mach-Zehnder interferometers with state-of-the-art momentum separation of up to $141\,\hbar k$ and gradiometers of up to $81\,\hbar k$. Moreover, we circumvent excited state decay limitations and extend the gradiometer duration to 50 times the excited state lifetime. Because of the broad velocity acceptance of the interferometry pulses, all experiments are performed with laser-cooled atoms at a temperature of $3\,\mu \text{K}$. This work has applications in high-precision inertial sensing and paves the way for LMT-enhanced clock atom interferometry on even narrower transitions, a key ingredient in proposals for gravitational wave detection and dark matter searches. Comment: 6 pages, 4 figures |
| Databáze: | OpenAIRE |
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