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Quantum Coherent Tunable Coupling of Superconducting Qubits
Abstract
To do large-scale quantum information processing, it is necessary to control the interactions between individual qubits while retaining quantum coherence. To this end, superconducting circuits allow for a high degree of flexibility. We report on the time-domain tunable coupling of optimally biased superconducting flux qubits. By modulating the nonlinear inductance of an additional coupling element, we parametrically induced a two-qubit transition that was otherwise forbidden. We observed an on/off coupling ratio of 19 and were able to demonstrate a simple quantum protocol.
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Citations
Cited by
Ladd, T. D., Jelezko, F., Laflamme, R., Nakamura, Y., Monroe, C., & O’Brien, J. L. (2010) · Nature · doi:10.1038/nature08812 · Cited by 3,592
Self-citationOn-chip quantum simulation with superconducting circuits
Houck, A. A., Türeci, H. E., & Koch, J. (2012) · Nature Physics · doi:10.1038/nphys2251 · Cited by 1,069
Synthesizing arbitrary quantum states in a superconducting resonator
Hofheinz, M., Wang, H., Ansmann, M., Bialczak, R. C., Lucero, E., Neeley, M., O'Connell, A. D., Sank, D., Wenner, J., Martinis, J. M., et al. (2009) · Nature · doi:10.1038/nature08005 · Cited by 873
Tunable Coupling Scheme for Implementing High-Fidelity Two-Qubit Gates
Yan, F., Krantz, P., Sung, Y., Kjaergaard, M., Campbell, D. L., Orlando, T. P., Gustavsson, S., & Oliver, W. D. (2018) · Physical Review Applied · doi:10.1103/physrevapplied.10.054062 · Cited by 423
“[14] AO Niskanen, K Harrabi, F Yoshihara, Y Nakamura, S Lloyd, and JS Tsai, “Quantum coherent tunable coupling of superconducting qubits,” Science 316, 723–726 (2007).”
BackgroundEmulation of a Quantum Spin with a Superconducting Phase Qudit
Neeley, M., Ansmann, M., Bialczak, R. C., Hofheinz, M., Lucero, E., O'Connell, A. D., Sank, D., Wang, H., Wenner, J., Cleland, A. N., et al. (2009) · Science · doi:10.1126/science.1173440 · Cited by 304
Metadata
- Authors
- Niskanen, A. O., Harrabi, K., Yoshihara, F., Nakamura, Y., Lloyd, S., & Tsai, J. S.
- Venue
- Science
- Published
- 2007-05-04
- Volume
- 316
- Issue
- 5825
- Pages
- 723-726
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2128018005
- Cited by
- 426
- References
- 0
- FWCI
- 39.40
- Type
- journal article
- Language
- en
- Open access
- closed
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- Niskanen, A. O., Harrabi, K., Yoshihara, F., Nakamura, Y., Lloyd, S., & Tsai, J. S. (2007). Quantum Coherent Tunable Coupling of Superconducting Qubits. Science. https://doi.org/10.1126/science.1141324
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