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Enhancing strontium clock atom interferometry using quantum optimal control

Journal Article · · Physical Review A
Strontium clock atom interferometry is a promising new technology, with multiple experiments under development around the world to explore its potential for dark matter and gravitational wave detection. In these detectors, large momentum transfer using sequences of many laser pulses is necessary, and thus high-fidelity pulses are important since small errors become magnified. Quantum optimal control (QOC) is a framework for developing control pulse waveforms that achieve high fidelity and are robust against experimental imperfections. Resonant single-photon transitions using the narrow clock transition of strontium involve significantly different quantum dynamics than more established atom interferometry methods based on far-detuned two-photon Raman or Bragg transitions, which leads to new opportunities and challenges when applying QOC. Here, we study in simulation QOC pulses for strontium clock interferometry and demonstrate their advantage over basic square pulses (primitive pulses) and composite pulses in terms of robustness against multiple noise channels. In conclusion, this could improve the scale of large momentum transfer in Sr clock interferometers, paving the way to achieving these scientific goals.
Research Organization:
National Quantum Information Science (QIS) Research Centers (United States). Superconducting Quantum Materials and Systems Center (SQMS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
2423818
Alternate ID(s):
OSTI ID: 1883576
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 107; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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