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Superconducting Qubits
Multiplexed Readout of Transmon Qubits with Josephson Bifurcation Amplifiers
arXiv
Authors: V. Schmitt, X. Zhou, K. Juliusson, A. Blais, P. Bertet, D. Vion, D. Esteve
Year
2014
Paper ID
47424
Status
Preprint
Abstract Read
~2 min
Abstract Words
84
Citations
N/A
Abstract
Achieving individual qubit readout is a major challenge in the development of scalable superconducting quantum processors. We have implemented the multiplexed readout of a four transmon qubit circuit using non-linear resonators operated as Josephson bifurcation amplifiers. We demonstrate the simultaneous measurement of Rabi oscillations of the four transmons. We find that multiplexed Josephson bifurcation is a high-fidelity readout method, the scalability of which is not limited by the need of a large bandwidth nearly quantum-limited amplifier as is the case with linear readout resonators.
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- This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
- It adds a 2014 reference point for readers tracking recent quantum research.
- Achieving individual qubit readout is a major challenge in the development of scalable superconducting quantum processors.
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