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Low- and High-Frequency Noise from Coherent Two-Level Systems
Open accessAbstract
Recent experiments indicate a connection between the low- and high-frequency noises affecting superconducting quantum systems. We explore the possibilities that both noises can be produced by one ensemble of microscopic modes, made up, e.g., by sufficiently coherent two-level systems (TLS's). This implies a relation between the noise power in different frequency domains, which depends on the distribution of the parameters of the TLS's. We show that a distribution, natural for tunneling TLS's, with a log-uniform distribution in the tunnel splitting and linear distribution in the bias, accounts for experimental observations.
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Cited by
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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
Coherent Josephson Qubit Suitable for Scalable Quantum Integrated Circuits
Barends, R., Kelly, J., Megrant, A., Sank, D., Jeffrey, E., Chen, Y., Yin, Y., Chiaro, B., Mutus, J., Neill, C., et al. (2013) · Physical Review Letters · doi:10.1103/physrevlett.111.080502 · Cited by 779
The flux qubit revisited to enhance coherence and reproducibility
Yan, F., Gustavsson, S., Kamal, A., Birenbaum, J., Sears, A. P., Hover, D., Gudmundsen, T. J., Rosenberg, D., Samach, G., Weber, S., et al. (2016) · Nature Communications · doi:10.1038/ncomms12964 · Cited by 587
Towards understanding two-level-systems in amorphous solids: insights from quantum circuits
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Metadata
- Authors
- Shnirman, A., Schön, G., Martin, I., & Makhlin, Y.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2005-04-01
- Volume
- 94
- Issue
- 12
- Pages
- 127002-127002
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2058375340
- Cited by
- 175
- References
- 0
- FWCI
- 13.74
- Type
- journal article
- Language
- en
- Open access
- green
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- Shnirman, A., Schön, G., Martin, I., & Makhlin, Y. (2005). Low- and High-Frequency Noise from Coherent Two-Level Systems. Physical Review Letters. https://doi.org/10.1103/physrevlett.94.127002
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