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1/fFlux Noise in Josephson Phase Qubits
Open accessAbstract
We present a new method to measure 1/f noise in Josephson quantum bits (qubits) that yields low-frequency spectra below 1 Hz. A comparison of the noise taken at positive and negative bias of a phase qubit shows the dominant noise source to be flux noise and not junction critical-current noise, with a magnitude similar to that measured previously in other systems. Theoretical calculations show that the level of flux noise is not compatible with the standard model of noise from two-level state defects in the surface oxides of the films.
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Citations
Cites
Decoherence in Josephson Qubits from Dielectric Loss
Martinis, J. M., Cooper, K. B., McDermott, R., Steffen, M., Ansmann, M., Osborn, K. D., Cicak, K., Oh, S., Pappas, D. P., Simmonds, R. W., et al. (2005) · Physical Review Letters · doi:10.1103/physrevlett.95.210503 · Cited by 838
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Cited by
Degen, C. L., Reinhard, F., & Cappellaro, P. (2017) · Reviews of Modern Physics · doi:10.1103/revmodphys.89.035002 · Cited by 4,045
Materials challenges and opportunities for quantum computing hardware
de Leon, N. P., Itoh, K. M., Kim, D., Mehta, K. K., Northup, T. E., Paik, H., Palmer, B. S., Samarth, N., Sangtawesin, S., & Steuerman, D. W. (2021) · Science · doi:10.1126/science.abb2823 · Cited by 710
Violation of Bell's inequality in Josephson phase qubits
Ansmann, M., Wang, H., Bialczak, R. C., Hofheinz, M., Lucero, E., Neeley, M., O'Connell, A. D., Sank, D., Weides, M., Wenner, J., et al. (2009) · Nature · doi:10.1038/nature08363 · Cited by 441
Self-citationQuantum process tomography of a universal entangling gate implemented with Josephson phase qubits
Bialczak, R. C., Ansmann, M., Hofheinz, M., Lucero, E., Neeley, M., O’Connell, A. D., Sank, D., Wang, H., Wenner, J., Steffen, M., et al. (2010) · Nature Physics · doi:10.1038/nphys1639 · Cited by 260
Self-citationBias-preserving gates with stabilized cat qubits
Puri, S., St-Jean, L., Gross, J. A., Grimm, A., Frattini, N. E., Iyer, P. S., Krishna, A., Touzard, S., Jiang, L., Blais, A., et al. (2020) · Science Advances · doi:10.1126/sciadv.aay5901 · Cited by 201
Metadata
- Authors
- Bialczak, R. C., McDermott, R., Ansmann, M., Hofheinz, M., Katz, N., Lucero, E., Neeley, M., O’Connell, A. D., Wang, H., Cleland, A. N., & Martinis, J. M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2007-11-02
- Volume
- 99
- Issue
- 18
- Pages
- 187006-187006
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2170796146
- Cited by
- 198
- References
- 1
- FWCI
- 15.37
- Type
- journal article
- Language
- en
- Open access
- green
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- Bialczak, R. C., McDermott, R., Ansmann, M., Hofheinz, M., Katz, N., Lucero, E., Neeley, M., O’Connell, A. D., Wang, H., Cleland, A. N., & Martinis, J. M. (2007). 1/fFlux Noise in Josephson Phase Qubits. Physical Review Letters. https://doi.org/10.1103/physrevlett.99.187006
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