Single-photon two-qubit SWAP gate for entanglement manipulation
量子物理
2016-09-08 v2
摘要
A SWAP operation between different types of qubits of single photons is essential for manipulating hyperentangled photons for a variety of applications. We have implemented an efficient SWAP gate for the momentum and polarization degrees of freedom of single photons. The SWAP gate was utilized in a single-photon two-qubit quantum logic circuit to deterministically transfer momentum entanglement between a pair of down-converted photons to polarization entanglement. The polarization entanglement thus obtained violates Bell's inequality by more than 150 standard deviations.
引用
@article{arxiv.quant-ph/0407136,
title = {Single-photon two-qubit SWAP gate for entanglement manipulation},
author = {Marco Fiorentino and Taehyun Kim and Franco N. C. Wong},
journal= {arXiv preprint arXiv:quant-ph/0407136},
year = {2016}
}
备注
Changes in the body of the paper, one reference added, typos corrected