0607043v1

related topics
{state, phys, rev}
{qubit, qubits, gate}
{cavity, atom, atoms}
{time, decoherence, evolution}
{spin, pulse, spins}
{state, algorithm, problem}
{level, atom, field}
{trap, ion, state}
{cos, sin, state}
{state, states, entangled}

Quantum controlled phase gate and cluster states generation via two superconducting quantum interference devices in a cavity

Zheng-Yuan Xue, Gang Zhang, Ping Dong, You-Min Yi, Zhuo-Liang Cao

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.

oai_identifier:
oai:arXiv.org:quant-ph/0607043
categories:
quant-ph
comments:
4 pages, resumitted
doi:
10.1140/epjb/e2006-00297-3
arxiv_id:
quant-ph/0607043
journal_ref:
Eur. Phys. J. B 52, 333 (2006).
created:
2006-07-06

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