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Tuning the Gap of a Superconducting Flux Qubit
Open accessAbstract
We experimentally demonstrate the in situ tunability of the minimum energy splitting (gap) of a superconducting flux qubit by means of an additional flux loop. Pulses applied via a local control line allow us to tune the gap over a range of several GHz on a nanosecond time scale. The strong flux sensitivity of the gap (up to approximately 0.7 GHz/mPhi0) opens up the possibility to create different types of tunable couplings that are effective at the degeneracy point of the qubit. We investigate the dependence of the relaxation time and the Rabi frequency on the qubit gap.
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Cited by
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Gu, X., Kockum, A. F., Miranowicz, A., Liu, Y.-X., & Nori, F. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.10.002 · Cited by 1,307
Experimental investigation of an eight-qubit unit cell in a superconducting optimization processor
Harris, R., Johnson, M. W., Lanting, T., Berkley, A. J., Johansson, J., Bunyk, P., Tolkacheva, E., Ladizinsky, E., Ladizinsky, N., Oh, T., et al. (2010) · Physical Review B · doi:10.1103/physrevb.82.024511 · Cited by 273
Experimental demonstration of a robust and scalable flux qubit
Harris, R., Johansson, J., Berkley, A. J., Johnson, M. W., Lanting, T., Han, S., Bunyk, P., Ladizinsky, E., Oh, T., Perminov, I., et al. (2010) · Physical Review B · doi:10.1103/physrevb.81.134510 · Cited by 177
Mostame, S., Rebentrost, P., Eisfeld, A., Kerman, A. J., Tsomokos, D. I., & Aspuru-Guzik, A. (2012) · New Journal of Physics · doi:10.1088/1367-2630/14/10/105013 · Cited by 104
Quantum simulations of relativistic quantum physics in circuit QED
Pedernales, J. S., Di Candia, R., Ballester, D., & Solano, E. (2013) · New Journal of Physics · doi:10.1088/1367-2630/15/5/055008 · Cited by 40
Metadata
- Authors
- Paauw, F. G., Fedorov, A., Harmans, C. J. P. M., & Mooij, J. E.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2009-03-05
- Volume
- 102
- Issue
- 9
- Pages
- 090501-090501
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2100369285
- Cited by
- 176
- References
- 0
- FWCI
- 13.37
- Type
- journal article
- Language
- en
- Open access
- green
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- Paauw, F. G., Fedorov, A., Harmans, C. J. P. M., & Mooij, J. E. (2009). Tuning the Gap of a Superconducting Flux Qubit. Physical Review Letters. https://doi.org/10.1103/physrevlett.102.090501
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