Symmetric Rydberg controlled-Z gates with adiabatic pulses
Abstract
We analyze neutral atom Rydberg CZ gates based on adiabatic pulses applied symmetrically to both atoms. Analysis with smooth pulse shapes and Cs atom parameters predicts the gates can create Bell states with fidelity F > 0.999 using adiabatic rapid passage (ARP) pulses. With globally optimized adiabatic pulse shapes, in a two-photon excitation process, we generate Bell states with fidelity F = 0.997. The analysis fully accounts for spontaneous emission from intermediate and Rydberg states, including the Rydberg lifetime in a room temperature environment, but does not include errors arising from laser noise. In conclusion, the gate protocols do not require individual addressing and are shown to be robust against Doppler shifts due to atomic motion.
- Authors:
-
[1];
[3];
[3];
[3]
- Univ. of Wisconsin, Madison, WI (United States)
- Rzhanov Inst. of Semiconductor Physics SB RAS, and Novosibirsk State Univ. (Russia)
- Univ. of Calgary, AB (Canada)
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); Russian Foundation for Basic Research; Russian Science Foundation; ARL
- OSTI Identifier:
- 1783195
- Grant/Contract Number:
- SC0019465; 17-02-00987; 18-12-00313; W911NF-18-1-0203
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review A
- Additional Journal Information:
- Journal Volume: 101; Journal Issue: 6; Journal ID: ISSN 2469-9926
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Quantum control; Quantum gates; Atoms
Citation Formats
Saffman, M., Beterov, I. I., Dalal, A., Páez, E. J., and Sanders, B. C. Symmetric Rydberg controlled-Z gates with adiabatic pulses. United States: N. p., 2020.
Web. doi:10.1103/physreva.101.062309.
Saffman, M., Beterov, I. I., Dalal, A., Páez, E. J., & Sanders, B. C. Symmetric Rydberg controlled-Z gates with adiabatic pulses. United States. https://doi.org/10.1103/physreva.101.062309
Saffman, M., Beterov, I. I., Dalal, A., Páez, E. J., and Sanders, B. C. Wed .
"Symmetric Rydberg controlled-Z gates with adiabatic pulses". United States. https://doi.org/10.1103/physreva.101.062309. https://www.osti.gov/servlets/purl/1783195.
@article{osti_1783195,
title = {Symmetric Rydberg controlled-Z gates with adiabatic pulses},
author = {Saffman, M. and Beterov, I. I. and Dalal, A. and Páez, E. J. and Sanders, B. C.},
abstractNote = {We analyze neutral atom Rydberg CZ gates based on adiabatic pulses applied symmetrically to both atoms. Analysis with smooth pulse shapes and Cs atom parameters predicts the gates can create Bell states with fidelity F > 0.999 using adiabatic rapid passage (ARP) pulses. With globally optimized adiabatic pulse shapes, in a two-photon excitation process, we generate Bell states with fidelity F = 0.997. The analysis fully accounts for spontaneous emission from intermediate and Rydberg states, including the Rydberg lifetime in a room temperature environment, but does not include errors arising from laser noise. In conclusion, the gate protocols do not require individual addressing and are shown to be robust against Doppler shifts due to atomic motion.},
doi = {10.1103/physreva.101.062309},
journal = {Physical Review A},
number = 6,
volume = 101,
place = {United States},
year = {Wed Jun 03 00:00:00 EDT 2020},
month = {Wed Jun 03 00:00:00 EDT 2020}
}
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