Resonator–zero-qubit architecture for superconducting qubits
Andrei Galiautdinov, Alexander N. Korotkov, John M. Martinis
DOI 10.1103/PhysRevA.85.042321 · Physical Review A
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Abstract
We analyze the performance of the resonator–zero-qubit (RezQu) architecture in which the qubits are complemented by memory resonators and coupled via a resonator bus. Separating the stored information from the rest of the processing circuit by at least two coupling steps and the zero qubit state results in a significant increase in the on-to-off ratio and a reduction in the idling error. Assuming no decoherence, we calculate such idling error, as well as the errors for the move operation and tunneling measurement, and show that the RezQu architecture can provide the high-fidelity performance required for medium-scale quantum information processing.
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