Using sideband transitions for two-qubit operations in superconducting circuits

P. Leek, S. Filipp, P. Maurer, M. Baur, R. Bianchetti, J.M. Fink, M. Göppl, L. Steffen, A. Wallraff, Physical Review B - Condensed Matter and Materials Physics 79 (2009).


Journal Article | Published
Author
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Abstract
We demonstrate the time-resolved driving of two-photon blue sideband transitions between superconducting qubits and a transmission line resonator. As an example of using these sideband transitions for a two-qubit operation, we implement a pulse sequence that first entangles one qubit with the resonator and subsequently distributes the entanglement between two qubits. We show the generation of 75% fidelity Bell states by this method. The full density matrix of the two-qubit system is extracted using joint measurement and quantum state tomography and shows close agreement with numerical simulation.
Publishing Year
Date Published
2009-05-01
Journal Title
Physical Review B - Condensed Matter and Materials Physics
Acknowledgement
This work was supported by ETH Zurich, the Swiss National Science Foundation, and by the EC via the EuroSQIP project and the Marie-Curie program (P. J. L.)
Volume
79
Issue
18
IST-REx-ID

Cite this

Leek P, Filipp S, Maurer P, et al. Using sideband transitions for two-qubit operations in superconducting circuits. Physical Review B - Condensed Matter and Materials Physics. 2009;79(18). doi:10.1103/PhysRevB.79.180511
Leek, P., Filipp, S., Maurer, P., Baur, M., Bianchetti, R., Fink, J. M., … Wallraff, A. (2009). Using sideband transitions for two-qubit operations in superconducting circuits. Physical Review B - Condensed Matter and Materials Physics, 79(18). https://doi.org/10.1103/PhysRevB.79.180511
Leek, Peter, Stefan Filipp, Patrick Maurer, Matthias Baur, R Bianchetti, Johannes M Fink, M Göppl, L. Steffen, and Andreas Wallraff. “Using Sideband Transitions for Two-Qubit Operations in Superconducting Circuits.” Physical Review B - Condensed Matter and Materials Physics 79, no. 18 (2009). https://doi.org/10.1103/PhysRevB.79.180511.
P. Leek et al., “Using sideband transitions for two-qubit operations in superconducting circuits,” Physical Review B - Condensed Matter and Materials Physics, vol. 79, no. 18, 2009.
Leek P, Filipp S, Maurer P, Baur M, Bianchetti R, Fink JM, Göppl M, Steffen L, Wallraff A. 2009. Using sideband transitions for two-qubit operations in superconducting circuits. Physical Review B - Condensed Matter and Materials Physics. 79(18).
Leek, Peter, et al. “Using Sideband Transitions for Two-Qubit Operations in Superconducting Circuits.” Physical Review B - Condensed Matter and Materials Physics, vol. 79, no. 18, American Physical Society, 2009, doi:10.1103/PhysRevB.79.180511.

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