Tunable quantum router with giant atoms, implementing quantum gates, teleportation, non-reciprocity, and circulators

Fuente: arXiv
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Main Authors: Gong, Rui-Yang, He, Zi-Yu, Yu, Cheng-He, Zhang, Ge-Fei, Nori, Franco, Xiang, Ze-Liang
Format: Preprint
Published: 2024
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author Gong, Rui-Yang
He, Zi-Yu
Yu, Cheng-He
Zhang, Ge-Fei
Nori, Franco
Xiang, Ze-Liang
author_facet Gong, Rui-Yang
He, Zi-Yu
Yu, Cheng-He
Zhang, Ge-Fei
Nori, Franco
Xiang, Ze-Liang
contents The unique photon-scattering phenomena of giant-atom systems offer a novel paradigm for exploring innovative quantum optics phenomena and applications. Here, we investigate a giant-atom configuration embedded in a dual-rail waveguide, whose scattering behavior is analytically derived based on a four-port model and affected by both waveguide-induced and interatomic interaction phases. One can modulate these phases to achieve targeted routing and non-reciprocal scattering of photons. Furthermore, using such a configuration, we propose quantum applications such as quantum storage, path-encoded quantum gates (e.g., CNOT gate), quantum teleportation, and quantum circulators. This configuration can be implemented with state-of-the-art solid-state quantum systems, enabling a wide range of quantum applications and facilitating the development of quantum networks.
format Preprint
id arxiv_https___arxiv_org_abs_2411_19307
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Tunable quantum router with giant atoms, implementing quantum gates, teleportation, non-reciprocity, and circulators
Gong, Rui-Yang
He, Zi-Yu
Yu, Cheng-He
Zhang, Ge-Fei
Nori, Franco
Xiang, Ze-Liang
Quantum Physics
The unique photon-scattering phenomena of giant-atom systems offer a novel paradigm for exploring innovative quantum optics phenomena and applications. Here, we investigate a giant-atom configuration embedded in a dual-rail waveguide, whose scattering behavior is analytically derived based on a four-port model and affected by both waveguide-induced and interatomic interaction phases. One can modulate these phases to achieve targeted routing and non-reciprocal scattering of photons. Furthermore, using such a configuration, we propose quantum applications such as quantum storage, path-encoded quantum gates (e.g., CNOT gate), quantum teleportation, and quantum circulators. This configuration can be implemented with state-of-the-art solid-state quantum systems, enabling a wide range of quantum applications and facilitating the development of quantum networks.
title Tunable quantum router with giant atoms, implementing quantum gates, teleportation, non-reciprocity, and circulators
topic Quantum Physics
url https://arxiv.org/abs/2411.19307