Scalable one-way quantum computer using on-chip resonator qubits

Details Scalable one-way quantum computer using on-chip resonator qubits Scalable one-way quantum computer using on-chip resonator qubits

2011-11-11

arxiv.org/abs/1111.2662v1

Physics

Quantum Physics

6 pages, 3 figures

Scientific paper

We propose a scalable and robust architecture for one-way quantum computation using coupled networks of superconducting transmission line resonators. In our protocol, quantum information is encoded into the long-lived photon states of the resonators, which have a much longer coherence time than the usual superconducting qubits. Each resonator contains a charge qubit used for the state initialization and local projective measurement of the photonic qubit. Any pair of neighboring photonic qubits are coupled via a mediator charge qubit, and large photonic cluster states can be created by applying Stark-shifted Rabi pulses to these mediator qubits. The distinct advantage of our architecture is that it combines both the excellent scalability of the solid-state systems and the long coherence time of the photonic qubits. Furthermore, this architecture is very robust against the parameter variations.

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