Quantum controlled phase gate and cluster states generation via two superconducting quantum interference devices in a cavity
arXiv:quant-ph/0607043 · doi:10.1140/epjb/e2006-00297-3
Abstract
A scheme for implementing 2-qubit quantum controlled phase gate (QCPG) is proposed with two superconducting quantum interference devices (SQUIDs) in a cavity. The gate operations are realized within the two lower flux states of the SQUIDs by using a quantized cavity field and classical microwave pulses. Our scheme is achieved without any type of measurement, does not use the cavity mode as the data bus and only requires a very short resonant interaction of the SQUID-cavity system. As an application of the QCPG operation, we also propose a scheme for generating the cluster states of many SQUIDs.
arXiv comment4 pages, resumitted
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