Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium
Journal Article
·
· Physical Review Letters
- Stanford Univ., CA (United States); OSTI
- Stanford Univ., CA (United States)
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 $$\textit{ℏk}$$ and gradiometers of up to 81 $$\textit{ℏk}$$. Furthermore, 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 μK. 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.
- Research Organization:
- Stanford Univ., CA (United States)
- Sponsoring Organization:
- US Department of the Navy, Office of Naval Research (ONR); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0019174
- OSTI ID:
- 1803603
- Alternate ID(s):
- OSTI ID: 1602352
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 124; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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