Quantum CZ Gate based on Single Gradient Metasurface

Fuente: arXiv
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Hauptverfasser: Liu, Qi, Tian, Yu, Tian, Zhaohua, Li, Guixin, Ren, Xi-Feng, Gong, Qihuang, Gu, Ying
Format: Preprint
Veröffentlicht: 2024
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author Liu, Qi
Tian, Yu
Tian, Zhaohua
Li, Guixin
Ren, Xi-Feng
Gong, Qihuang
Gu, Ying
author_facet Liu, Qi
Tian, Yu
Tian, Zhaohua
Li, Guixin
Ren, Xi-Feng
Gong, Qihuang
Gu, Ying
contents We propose a scheme to realize quantum controlled-Z (CZ) gates through single gradient metasurface. Using its unique parallel beam-splitting feature, i.e., a series of connected beam splitters with the same splitting ratio, one metasurface can support a CZ gate, several independent CZ gates, or a cascaded CZ gates. Taking advantage of the input polarization determined output path-locking feature, both polarization-encoded and path-encoded CZ gates can be demonstrated on the same metasurface, which further improves the integration level of quantum devices. Our research paves the way for integrating quantum logical function through the metasurface.
format Preprint
id arxiv_https___arxiv_org_abs_2405_10154
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Quantum CZ Gate based on Single Gradient Metasurface
Liu, Qi
Tian, Yu
Tian, Zhaohua
Li, Guixin
Ren, Xi-Feng
Gong, Qihuang
Gu, Ying
Quantum Physics
Optics
We propose a scheme to realize quantum controlled-Z (CZ) gates through single gradient metasurface. Using its unique parallel beam-splitting feature, i.e., a series of connected beam splitters with the same splitting ratio, one metasurface can support a CZ gate, several independent CZ gates, or a cascaded CZ gates. Taking advantage of the input polarization determined output path-locking feature, both polarization-encoded and path-encoded CZ gates can be demonstrated on the same metasurface, which further improves the integration level of quantum devices. Our research paves the way for integrating quantum logical function through the metasurface.
title Quantum CZ Gate based on Single Gradient Metasurface
topic Quantum Physics
Optics
url https://arxiv.org/abs/2405.10154