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Routing of photon play a key role in optical communication networks and quantum networks. Although the quantum routing of signals has been investigated in various systems both in theory and experiment, the general form of quantum routing…

Quantum Physics · Physics 2014-10-20 Peng-Cheng Ma , Jian-Qi Zhang , Yin Xiao , Mang Feng , Zhi-Ming Zhang

We study the multi-channel quantum routing of the single photons in a waveguide-emitter system. The channels are composed by the waveguides and are connected by intermediate two-level emitters. By adjusting the intermediate emitters, the…

Quantum Physics · Physics 2014-04-30 Wei-Bin Yan , Heng Fan

We propose an efficient single-photon router comprising two resonator waveguide channels coupled by several sequential cavities with embedded three-level atoms. We show that the system can operate as a perfect four-way single-photon switch.…

Quantum Physics · Physics 2019-03-27 M. Ahumada , P. A. Orellana , F. Domínguez-Adame , A. V. Malyshev

Nowadays, quantum router is playing a key role in quantum communication and quantum network- s. Here we propose a tunable single-photon routing scheme, based on quantum interference, which uses two distant artificial atoms coupling to two…

Quantum Physics · Physics 2016-04-20 Xin-Yu Chen , Feng-Yang Zhang , Chong Li

Quantum emitters coupled to nanophotonic structures are an excellent platform for controllable single-photon scattering. The tunable light-matter interaction enables the construction of a single-photon switch -- a device that can route a…

Quantum Physics · Physics 2026-05-15 Mateusz Duda , Nicholas J. Martin , Eve O. Mills , Luke R. Wilson , Pieter Kok

A multi-channel quantum router with four nodal cavities is constructed by two coupled-resonator waveguides and four single cavities. We can achieve directional routing by adjusting the probability of photon exiting from the specified port…

Quantum Physics · Physics 2023-06-21 Xu Yang , Lei Tan , Wu-Ming Liu

The prospect of quantum networks, in which quantum information is carried by single photons in photonic circuits, has long been the driving force behind the effort to achieve all-optical routing of single photons. Here we realize the most…

Quantum Physics · Physics 2015-01-08 Itay Shomroni , Serge Rosenblum , Yulia Lovsky , Orel Bechler , Gabriel Guendelman , Barak Dayan

We propose a single-photon router using a single atom with an inversion center coupled to quantum multichannels made of coupled-resonator waveguides. We show that the spontaneous emission of the atom can direct single photons from one…

Quantum Physics · Physics 2014-01-14 Jing Lu , Lan Zhou , Le-man Kuang , Franco Nori

A nonclassical light source is essential for implementing a wide range of quantum information processing protocols, including quantum computing, networking, communication, and metrology. In the microwave regime, propagating photonic qubits…

We propose an experimentally accessible single-photon routing scheme using a $\bigtriangleup$-type three-level atom embedded in quantum multi-channels composed of coupled-resonator waveguides. Via the on-demand classical field applied to…

Quantum Physics · Physics 2013-10-30 Lan Zhou , Li-Ping Yang , Yong Li , C. P. Sun

Bidirectional conversion of electrical and optical signals lies at the foundation of the global internet. Such converters are employed at repeater stations to extend the reach of long-haul fiber optic communication systems and within data…

Quantum Physics · Physics 2020-12-29 Mohammad Mirhosseini , Alp Sipahigil , Mahmoud Kalaee , Oskar Painter

Efficient and coherent conversion between microwave and optical signals is crucial for a wide range of applications, from quantum information processing to microwave photonics and radar systems. However, existing conversion techniques rely…

In this paper, we report on experimental implementation of a linear-optical quantum router. Our device allows single-photon polarization-encoded qubits to be routed coherently into two spatial output modes depending on the state of two…

Quantum Physics · Physics 2018-09-12 Karol Bartkiewicz , Antonín Černoch , Karel Lemr

The router is a key element for a network. We describe a scheme to realize genuine quantum routing of single-photon pulses based on cascading of conditional quantum gates in a Mach-Zehnder interferometer and report a proof-of-principle…

Quantum Physics · Physics 2015-08-10 X. X. Yuan , J. -J. Ma , P. -Y. Hou , X. -Y. Chang , C. Zu , L. -M. Duan

A microwave-optical photon converter with high efficiency ($>50$ %) and low added noise ($\ll 1$ photon) could enable the creation of scalable quantum networks where quantum information is distributed optically and processed in the…

Quantum Physics · Physics 2025-02-25 M Khalifa , P S Kirwin , Jeff F Young , J Salfi

The implementation of quantum routers is an important and desired task in quantum information science, since quantum routers are important components of quantum networks. Here, we propose a scheme for implementing single-photon routers in a…

Quantum Physics · Physics 2026-04-30 Shi-Yu Liu , Lin-Lin Jiang , Hai Zhu , Jie-Qiao Liao , Jin-Feng Huang

Controlling and swapping quantum information in a quantum coherent way between the microwave and optical regimes is essential for building long-range superconducting quantum networks but extremely challenging. We propose a hybrid quantum…

Quantum Physics · Physics 2018-05-23 Keyu Xia , Fedor Jelezko , Jason Twamley

A scheme of single-photon multi-port router is put forward by coupling two optomechanical cavities with waveguides. It is shown that the coupled two optomechanical cavities can exhibit photon blockade effect, which is generated from…

Quantum Physics · Physics 2016-10-19 Xun Li , Wen-Zhao Zhang , Ling Zhou

Scalable quantum technologies may be applied in prospective architectures employing traditional information processing elements, such as transistors, rectifiers, or switches modulated by low-power inputs. In this respect, recently developed…

Quantum Physics · Physics 2025-07-17 Davide Rinaldi , Davide Nigro , Dario Gerace

Two-way microwave-optical quantum transduction is essential to connecting distant superconducting qubits via optical fiber, and to enable quantum networking at a large scale. In Bl\'esin, Tian, Bhave, and Kippenberg's article, ``Quantum…

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