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Diabatic gates for frequency-tunable superconducting qubits
- Source :
- Phys. Rev. Lett. 123, 210501 (2019)
- Publication Year :
- 2019
-
Abstract
- We demonstrate diabatic two-qubit gates with Pauli error rates down to $4.3(2)\cdot 10^{-3}$ in as fast as 18 ns using frequency-tunable superconducting qubits. This is achieved by synchronizing the entangling parameters with minima in the leakage channel. The synchronization shows a landscape in gate parameter space that agrees with model predictions and facilitates robust tune-up. We test both iSWAP-like and CPHASE gates with cross-entropy benchmarking. The presented approach can be extended to multibody operations as well.<br />Comment: Main text: 6 pages, 4 figures. Supplementary: 2 pages, 2 figures
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 123, 210501 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1907.02510
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.123.210501