Deterministic Controlled-NOT gate for single-photon two-qubit quantum logic

Marco Fiorentino; Franco N. C. Wong

doi:10.1103/PhysRevLett.93.070502

Deterministic Controlled-NOT gate for single-photon two-qubit quantum logic

量子物理 2009-11-10 v2

作者: Marco Fiorentino , Franco N. C. Wong

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摘要

We demonstrate a robust implementation of a deterministic linear-optical Controlled-NOT (CNOT) gate for single-photon two-qubit quantum logic. A polarization Sagnac interferometer with an embedded 45 $^{\circ}$ -oriented dove prism is used to enable the polarization control qubit to act on the momentum (spatial) target qubit of the same photon. The CNOT gate requires no active stabilization because the two spatial modes share a common path, and it is used to entangle the polarization and momentum qubits.

关键词

quantum gates and qubits

引用

@article{arxiv.quant-ph/0402208,
  title  = {Deterministic Controlled-NOT gate for single-photon two-qubit quantum logic},
  author = {Marco Fiorentino and Franco N. C. Wong},
  journal= {arXiv preprint arXiv:quant-ph/0402208},
  year   = {2009}
}

备注

10 pages, 4 figures. Typos corrected, referee comments and corrections

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