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Rapid High-fidelity Multiplexed Readout of Superconducting Qubits
Open accessAbstract
Fast, high-fidelity readout of qubits is crucial in quantum computing. Quantum error correction in particular requires the repeated measurement of subsets of qubits without perturbing any others. Achieving this goal in a multiplexed readout architecture has been challenging, mainly due to the crosstalk of readout signals. In this work, individual Purcell filters are used for each readout resonator to protect the qubits from untargeted readout signals, and from radiative decay. By implementing this scheme, which could find broad use in near-term multiqubit devices, the authors demonstrate the $s\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}m\phantom{\rule{0}{0ex}}u\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}a\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}o\phantom{\rule{0}{0ex}}u\phantom{\rule{0}{0ex}}s$ readout of up to five qubits.
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Cited by
Realizing repeated quantum error correction in a distance-three surface code
Krinner, S., Lacroix, N., Remm, A., Di Paolo, A., Genois, E., Leroux, C., Hellings, C., Lazar, S., Swiadek, F., Herrmann, J., et al. (2022) · Nature · doi:10.1038/s41586-022-04566-8 · Cited by 686
Self-citationMitigating measurement errors in multiqubit experiments
Bravyi, S., Sheldon, S., Kandala, A., Mckay, D. C., & Gambetta, J. M. (2021) · Physical Review A · doi:10.1103/physreva.103.042605 · Cited by 343
Building a Fault-Tolerant Quantum Computer Using Concatenated Cat Codes
Chamberland, C., Noh, K., Arrangoiz-Arriola, P., Campbell, E. T., Hann, C. T., Iverson, J., Putterman, H., Bohdanowicz, T. C., Flammia, S. T., Keller, A., et al. (2022) · PRX Quantum · doi:10.1103/prxquantum.3.010329 · Cited by 281
Efficient and noise resilient measurements for quantum chemistry on near-term quantum computers
Huggins, W. J., McClean, J. R., Rubin, N. C., Jiang, Z., Wiebe, N., Whaley, K. B., & Babbush, R. (2021) · npj Quantum Information · doi:10.1038/s41534-020-00341-7 · Cited by 256
Towards scalable bosonic quantum error correction
Terhal, B. M., Conrad, J., & Vuillot, C. (2020) · Quantum Science and Technology · doi:10.1088/2058-9565/ab98a5 · Cited by 146
Metadata
- Authors
- Heinsoo, J., Andersen, C. K., Remm, A., Krinner, S., Walter, T., Salathé, Y., Gasparinetti, S., Besse, J.-C., Potočnik, A., Wallraff, A., & Eichler, C.
- Venue
- Physical Review Applied
- Publisher
- American Physical Society (APS)
- Published
- 2018-09-20
- Volume
- 10
- Issue
- 3
- ISSN
- 2331-7019 (ISSN-L)
- OpenAlex
- W2785271855
- Cited by
- 276
- References
- 5
- FWCI
- 11.32
- Type
- journal article
- Language
- en
- Open access
- green
- Licence
- Funders
- Office of the Director of National Intelligence
- Intelligence Advanced Research Projects Activity
- U.S. Army Research Office (W911NF-16-1-0071)
- National Centre of Competence in Research Quantum Science and Technology
- Swiss National Science Foundation
- ETH Zurich
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