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

Chun-Wang Wu, Ming Gao, Hong-Yi Li, Zhi-Jiao Deng, Hong-Yi Dai, Ping-Xing Chen, and Cheng-Zu Li
Phys. Rev. A 85, 042301 – Published 2 April 2012

Abstract

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 the 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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  • Received 11 November 2011

DOI:https://doi.org/10.1103/PhysRevA.85.042301

©2012 American Physical Society

Authors & Affiliations

Chun-Wang Wu*, Ming Gao, Hong-Yi Li, Zhi-Jiao Deng, Hong-Yi Dai, Ping-Xing Chen, and Cheng-Zu Li

  • College of Science, National University of Defense Technology, Changsha 410073, People's Republic of China

  • *cwwu@nudt.edu.cn

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Vol. 85, Iss. 4 — April 2012

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