| Autor: |
Yan, Fei, Krantz, Philip, Sung, Youngkyu, Kjaergaard, Morten, Campbell, Dan, Wang, Joel I. J., Orlando, Terry P., Gustavsson, Simon, Oliver, William D. |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Applied 10, 054062 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevApplied.10.054062 |
| Popis: |
The prospect of computational hardware with quantum advantage relies critically on the quality of quantum gate operations. Imperfect two-qubit gates is a major bottleneck for achieving scalable quantum information processors. Here, we propose a generalizable and extensible scheme for a two-qubit coupler switch that controls the qubit-qubit coupling by modulating the coupler frequency. Two-qubit gate operations can be implemented by operating the coupler in the dispersive regime, which is non-invasive to the qubit states. We investigate the performance of the scheme by simulating a universal two-qubit gate on a superconducting quantum circuit, and find that errors from known parasitic effects are strongly suppressed. The scheme is compatible with existing high-coherence hardware, thereby promising a higher gate fidelity with current technologies. |
| Databáze: |
arXiv |
| Externí odkaz: |
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