Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array
Abstract
We demonstrate high fidelity two-qubit Rydberg blockade and entanglement on a pair of sites in a large two-dimensional qubit array. The qubit array is defined by a grid of blue detuned lines of light with 121 sites for trapping atomic qubits. Improved experimental methods have increased the observed Bell state fidelity to F$$_{Bell}$$=0.86(2). Accounting for errors in state preparation and measurement we infer a fidelity of F$$^{-SPAM}_{Bell}$$=0.88. Accounting for errors in single qubit operations we infer that a Bell state created with the Rydberg mediated CZ gate has a fidelity of F$$^{C_Z}_{Bell}$$=0.89. Comparison with a detailed error model based on quantum process matrices indicates that finite atom temperature and laser noise are the dominant error sources contributing to the observed gate infidelity.
- Authors:
-
- Univ. of Wisconsin, Madison, WI (United States)
- Univ. of Wisconsin, Madison, WI (United States); Univ. of Maryland, College Park, MD (United States)
- Univ. of Wisconsin, Madison, WI (United States); Chinese Academy of Sciences (CAS), Shanghai (China)
- Univ. of Wisconsin, Madison, WI (United States); ColdQuanta, Inc., Madison, WI (United States)
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
- OSTI Identifier:
- 1593526
- Alternate Identifier(s):
- OSTI ID: 1782730
- Grant/Contract Number:
- SC0019465; PHY-1720220
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 123; Journal Issue: 23; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; atom & ion trapping & guiding; quantum gates; quantum information architecture & platforms
Citation Formats
Graham, T. M., Kwon, M., Grinkemeyer, B., Marra, Z., Jiang, X., Lichtman, M. T., Sun, Y., Ebert, M., and Saffman, M. Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array. United States: N. p., 2019.
Web. doi:10.1103/PhysRevLett.123.230501.
Graham, T. M., Kwon, M., Grinkemeyer, B., Marra, Z., Jiang, X., Lichtman, M. T., Sun, Y., Ebert, M., & Saffman, M. Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array. United States. https://doi.org/10.1103/PhysRevLett.123.230501
Graham, T. M., Kwon, M., Grinkemeyer, B., Marra, Z., Jiang, X., Lichtman, M. T., Sun, Y., Ebert, M., and Saffman, M. Sun .
"Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array". United States. https://doi.org/10.1103/PhysRevLett.123.230501. https://www.osti.gov/servlets/purl/1593526.
@article{osti_1593526,
title = {Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array},
author = {Graham, T. M. and Kwon, M. and Grinkemeyer, B. and Marra, Z. and Jiang, X. and Lichtman, M. T. and Sun, Y. and Ebert, M. and Saffman, M.},
abstractNote = {We demonstrate high fidelity two-qubit Rydberg blockade and entanglement on a pair of sites in a large two-dimensional qubit array. The qubit array is defined by a grid of blue detuned lines of light with 121 sites for trapping atomic qubits. Improved experimental methods have increased the observed Bell state fidelity to F$_{Bell}$=0.86(2). Accounting for errors in state preparation and measurement we infer a fidelity of F$^{-SPAM}_{Bell}$=0.88. Accounting for errors in single qubit operations we infer that a Bell state created with the Rydberg mediated CZ gate has a fidelity of F$^{C_Z}_{Bell}$=0.89. Comparison with a detailed error model based on quantum process matrices indicates that finite atom temperature and laser noise are the dominant error sources contributing to the observed gate infidelity.},
doi = {10.1103/PhysRevLett.123.230501},
journal = {Physical Review Letters},
number = 23,
volume = 123,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 2019},
month = {Sun Dec 01 00:00:00 EST 2019}
}
Web of Science
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