Dispersive optical systems for scalable Raman driving of hyperfine qubits
Name
PhysRevA.105.032618.pdf
Description
Published version
Size
2.43 MB
Format
Adobe PDF
Checksum (MD5)
39573e49f0e11e9d513de0c6c7a49e16
Author(s)
Levine, Harry
Bluvstein, Dolev
Keesling, Alexander
Wang, Tout T
Ebadi, Sepehr
Semeghini, Giulia
Omran, Ahmed
Greiner, Markus
Vuletić, Vladan
Lukin, Mikhail D
Date Issued
March 29, 2022
Journal
Physical Review A
Publisher
American Physical Society (APS)
Citation
Levine, Harry, Bluvstein, Dolev, Keesling, Alexander, Wang, Tout T, Ebadi, Sepehr et al. 2022. "Dispersive optical systems for scalable Raman driving of hyperfine qubits." Physical Review A, 105 (3).
Version
Final published version
Abstract
Hyperfine atomic states are among the most promising candidates for qubit
encoding in quantum information processing. In atomic systems, hyperfine
transitions are typically driven through a two-photon Raman process by a laser
field which is amplitude modulated at the hyperfine qubit frequency. Here, we
introduce a new method for generating amplitude modulation by phase modulating
a laser and reflecting it from a highly dispersive optical element known as a
chirped Bragg grating (CBG). This approach is passively stable, offers high
efficiency, and is compatible with high-power laser sources, enabling large
Rabi frequencies and improved quantum coherence. We benchmark this new approach
by globally driving an array of $\sim 300$ neutral $^{87}$Rb atomic qubits
trapped in optical tweezers, and obtain Rabi frequencies of 2 MHz with
photon-scattering error rates of $< 2 \times 10^{-4}$ per $\pi$-pulse. This
robust approach can be directly integrated with local addressing optics in both
neutral atom and trapped ion systems to facilitate high-fidelity single-qubit
operations for quantum information processing.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/physreva.105.032618
