The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Efficient Z gates for quantum computing
Open accessAbstract
For superconducting qubits, microwave pulses drive rotations around the Bloch sphere. The phase of these drives can be used to generate zero-duration arbitrary virtual $Z$ gates, which, combined with two ${X}_{\ensuremath{\pi}/2}$ gates, can generate any SU(2) gate. Here we show how to best utilize these virtual $Z$ gates to both improve algorithms and correct pulse errors. We perform randomized benchmarking using a Clifford set of Hadamard and $Z$ gates and show that the error per Clifford is reduced versus a set consisting of standard finite-duration $X$ and $Y$ gates. $Z$ gates can correct unitary rotation errors for weakly anharmonic qubits as an alternative to pulse-shaping techniques such as derivative removal by adiabatic gate (DRAG). We investigate leakage and show that a combination of DRAG pulse shaping to minimize leakage and $Z$ gates to correct rotation errors realizes a 13.3 ns ${X}_{\ensuremath{\pi}/2}$ gate characterized by low error $[1.95(3)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}]$ and low leakage $[3.1(6)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}6}]$. Ultimately leakage is limited by the finite temperature of the qubit, but this limit is two orders of magnitude smaller than pulse errors due to decoherence.
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Cites
Superconducting quantum circuits at the surface code threshold for fault tolerance
Barends, R., Kelly, J., Megrant, A., Veitia, A., Sank, D., Jeffrey, E., White, T. C., Mutus, J., Fowler, A. G., Campbell, B., et al. (2014) · Nature · doi:10.1038/nature13171 · Cited by 1,733
Randomized benchmarking of quantum gates
Knill, E., Leibfried, D., Reichle, R., Britton, J., Blakestad, R. B., Jost, J. D., Langer, C., Ozeri, R., Seidelin, S., & Wineland, D. J. (2008) · Physical Review A · doi:10.1103/physreva.77.012307 · Cited by 1,019
Universal Gate for Fixed-Frequency Qubits via a Tunable Bus
McKay, D. C., Filipp, S., Mezzacapo, A., Magesan, E., Chow, J. M., & Gambetta, J. M. (2016) · Physical Review Applied · doi:10.1103/physrevapplied.6.064007 · Cited by 321
Self-citationAn algorithmic benchmark for quantum information processing
Knill, E., Laflamme, R., Martinez, R., & Tseng, C.-H. (2000) · Nature · doi:10.1038/35006012 · Cited by 290
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Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets
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Self-citationSuperconducting Qubits: Current State of Play
Kjaergaard, M., Schwartz, M. E., Braumüller, J., Krantz, P., Wang, J. I.-J., Gustavsson, S., & Oliver, W. D. (2020) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031119-050605 · Cited by 1,544
Error mitigation extends the computational reach of a noisy quantum processor
Kandala, A., Temme, K., Córcoles, A. D., Mezzacapo, A., Chow, J. M., & Gambetta, J. M. (2019) · Nature · doi:10.1038/s41586-019-1040-7 · Cited by 871
Self-citationQuantum optimization of maximum independent set using Rydberg atom arrays
Ebadi, S., Keesling, A., Cain, M., Wang, T. T., Levine, H., Bluvstein, D., Semeghini, G., Omran, A., Liu, J.-G., Samajdar, R., et al. (2022) · Science · doi:10.1126/science.abo6587 · Cited by 430
Two-qubit silicon quantum processor with operation fidelity exceeding 99%
Mills, A. R., Guinn, C. R., Gullans, M. J., Sigillito, A. J., Feldman, M. M., Nielsen, E., & Petta, J. R. (2022) · Science Advances · doi:10.1126/sciadv.abn5130 · Cited by 329
Metadata
- Authors
- McKay, D. C., Wood, C. J., Sheldon, S., Chow, J. M., & Gambetta, J. M.
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2017-08-31
- Volume
- 96
- Issue
- 2
- ISSN
- 0556-2791 (ISSN-L)
- 2469-9926
- 2469-9934
- OpenAlex
- W2560309622
- Cited by
- 557
- References
- 4
- FWCI
- 14.10
- Type
- journal article
- Language
- en
- Open access
- green
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