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Measurement-induced two-qubit entanglement in a bad cavity: Fundamental and practical considerations

zqyin 添加于 2012-2-23 10:51 | 1840 次阅读 | 0 个评论

作者
Julsgaard B, Mølmer K
摘要
An entanglement-generating protocol is described for two qubits coupled to a cavity field in the bad-cavity limit. By measuring the amplitude of a field transmitted through the cavity, an entangled spin-singlet state can be established probabilistically. Both fundamental limitations and practical measurement schemes are discussed, and the influence of dissipative processes and inhomogeneities in the qubits are analyzed. The measurement-based protocol provides criteria for selecting states with an infidelity scaling linearly with the qubit-decoherence rate.
详细资料
- 关键词: quant-ph
- 文献种类:手稿
- 期卷页: 2012年
- 日期: 2012-2-22
- 发布方式: arXiv e-prints
- 备注:arXiv:1202.4854v1; 13 pages, 7 figures, submitted to Phys. Rev. A
标签

cavity QED entanglement
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