Yijun Jiang
Ph.D. Student in Applied Physics, admitted Autumn 2016
Masters Student in Applied Physics, admitted Autumn 2024
All Publications
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Atom Interferometry with Floquet Atom Optics.
Physical review letters
2022; 129 (18): 183202
Abstract
Floquet engineering offers a compelling approach for designing the time evolution of periodically driven systems. We implement a periodic atom-light coupling to realize Floquet atom optics on the strontium ^{1}S_{0}-^{3}P_{1} transition. These atom optics reach pulse efficiencies above 99.4% over a wide range of frequency offsets between light and atomic resonance, even under strong driving where this detuning is on the order of the Rabi frequency. Moreover, we use Floquet atom optics to compensate for differential Doppler shifts in large momentum transfer atom interferometers and achieve state-of-the-art momentum separation in excess of 400ℏk. This technique can be applied to any two-level system at arbitrary coupling strength, with broad application in coherent quantum control.
View details for DOI 10.1103/PhysRevLett.129.183202
View details for PubMedID 36374679
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Matter-wave Atomic Gradiometer Interferometric Sensor (MAGIS-100)
QUANTUM SCIENCE AND TECHNOLOGY
2021; 6 (4)
View details for DOI 10.1088/2058-9565/abf719
View details for Web of Science ID 000673145000001
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Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium
PHYSICAL REVIEW LETTERS
2020; 124 (8): 083604
Abstract
We report the first realization of large momentum transfer (LMT) clock atom interferometry. Using single-photon interactions on the strontium ^{1}S_{0}-^{3}P_{1} transition, we demonstrate Mach-Zehnder interferometers with state-of-the-art momentum separation of up to 141 ℏk and gradiometers of up to 81 ℏk. 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 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.
View details for DOI 10.1103/PhysRevLett.124.083604
View details for Web of Science ID 000517295000002
View details for PubMedID 32167328