Implementation of CU gates and its application in a remote-controlled quantum operation
Abstract
Recently, remote-controlled quantum information processing has been proposed for its applications in secure quantum processing protocols and distributed quantum networks. For remote-controlled quantum gates, the experimental realization of controlled unitary (CU) gates between any quantum gates is an essential task. Here, we propose and experimentally demonstrate a scheme for implementing CU gates between arbitrary pairs of unitary gates using the polarization and time-bin degrees of freedom of single-photons. Then, we experimentally implement remote-controlled single-qubit unitary gates by controlling either the state preparation or measurement of the control qubit with high process fidelities. We believe that the proposed remote-controlled quantum gate model can pave the way for secure and efficient quantum information processing.
Cite
@article{arxiv.2405.15931,
title = {Implementation of CU gates and its application in a remote-controlled quantum operation},
author = {Byungjoo Kim and Seongjin Hong and Yong-Su Kim and Kyunghwan Oh and Hyang-Tag Lim},
journal= {arXiv preprint arXiv:2405.15931},
year = {2024}
}
Comments
7 pages, 4 figures