Conditional phase gate and quantum state transfer via off-resonant quantum Zeno dynamics
Quantum Physics
2017-05-16 v1
Abstract
We propose a scheme to realize the conditional phase gate (CPG) and quantum state transfer (QST) between two qubits (acted by nitrogen-vacancy (NV) centers) based on off-resonant quantum Zeno dynamics. We also consider the entanglement dynamics of two qubits in this system. Since no cavity photons or excited levels of the NV center is populated during the whole process, the scheme is immune to the decay of cavity and spontaneous emission of the NV center. The strictly numerical simulation shows that the fidelities of QST and CPG are high even in the presence of realistic imperfections.
Cite
@article{arxiv.1705.04759,
title = {Conditional phase gate and quantum state transfer via off-resonant quantum Zeno dynamics},
author = {Wanjun Su and Zhenbiao Yang and Huizhi Wu},
journal= {arXiv preprint arXiv:1705.04759},
year = {2017}
}
Comments
18 pages, 8 figures, Optics Communications 2017