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Charge Echo in a Cooper-Pair Box
Open accessAbstract
A spin-echo-type technique is applied to an artificial two-level system that utilizes a charge degree of freedom in a small superconducting electrode. Gate-voltage pulses are used to produce the necessary pulse sequence in order to eliminate the inhomogeneity effect in the time-ensemble measurement and to obtain refocused echo signals. Comparison of the decay time of the observed echo signal with an estimated decoherence time suggests that low-frequency energy-level fluctuations due to the 1/f charge noise dominate the dephasing in the system.
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Citations
Cited by
Degen, C. L., Reinhard, F., & Cappellaro, P. (2017) · Reviews of Modern Physics · doi:10.1103/revmodphys.89.035002 · Cited by 4,045
Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
Wallraff, A., Schuster, D. I., Blais, A., Frunzio, L., Huang, R. S., Majer, J., Kumar, S., Girvin, S. M., & Schoelkopf, R. J. (2004) · Nature · doi:10.1038/nature02851 · Cited by 3,796
Superconducting Circuits for Quantum Information: An Outlook
Devoret, M. H., & Schoelkopf, R. J. (2013) · Science · doi:10.1126/science.1231930 · Cited by 2,114
Superconducting 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
Demonstration of conditional gate operation using superconducting charge qubits
Yamamoto, T., Pashkin, Y. A., Astafiev, O., Nakamura, Y., & Tsai, J. S. (2003) · Nature · doi:10.1038/nature02015 · Cited by 623
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Metadata
- Authors
- Nakamura, Y., Pashkin, Y., Yamamoto, T., & Tsai, J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2002-01
- Volume
- 88
- Issue
- 4
- Pages
- 047901-047901
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2033798881
- Cited by
- 321
- References
- 0
- FWCI
- 38.47
- Type
- journal article
- Language
- en
- Open access
- green
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