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理论物理通讯：英文版

Efficient One-Step Generation of Cluster State with Charge Qubits in Circuit QED

王艺敏, 李承祖

Published Jan 1, 2010• 0 citations
OpenAlex

Abstract

我们建议理论计划在电路证完体系结构与超导的 qubits 产生高度纠缠的簇状态。费用 qubits 在一根超导的传播线内被定位，它用作一根量数据总线。我们证明大簇状态能高效地与远程的象一样单一的操作员在就一个步骤被产生。被二通常认识到联合机制的量操作：电压联合或当前的联合，仅仅取决于全球几何特征并且不仅对传播线的热状态而且到某些随机的操作错误感觉迟钝。因此高保真单程的量计算能被完成。

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Efficient One-Step Generation of Cluster State with Charge Qubits in Circuit QED

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We propose theoretical schemes to generate highly entangled cluster state with superconducting qubits in a circuit QED architecture. Charge qubits are located inside a superconducting transmission line, which serves as a quantum data bus. We show that large clusters state can be efficiently generated in just one step with the long-range Ising-like unitary operators. The quantum operations which are generally realized by two coupling mechanisms: either voltage coupling or current coupling, depend only on global geometric features and are insensitive not only to the thermal state of the transmission line but also to certain random operation errors. Thus high-fidelity one-way quantum computation can be achieved.

Communications in Theoretical Physics•Jan 1, 2010•2 citations
我们建议理论计划在电路证完体系结构与超导的 qubits 产生高度纠缠的簇状态。费用 qubits 在一根超导的传播线内被定位，它用作一根量数据总线。我们证明大簇状态能高效地与远程的象一样单一的操作员在就一个步骤被产生。被二通常认识到联合机制的量操作：电压联合或当前的联合，仅仅取决于全球几何特征并且不仅对传播线的热状态而且到某些随机的操作错误感觉迟钝。因此高保真单程的量计算能被完成。
We propose theoretical schemes to generate highly entangled cluster state with superconducting qubits in a circuit QED architecture. Charge qubits are located inside a superconducting transmission line, which serves as a quantum data bus. We show that large clusters state can be efficiently generated in just one step with the long-range Ising-like unitary operators. The quantum operations which are generally realized by two coupling mechanisms: either voltage coupling or current coupling, depend only on global geometric features and are insensitive not only to the thermal state of the transmission line but also to certain random operation errors. Thus high-fidelity one-way quantum computation can be achieved.