Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum Teleportation over 100 km of Fiber using MoSi Superconducting Nanowire Single-Photon Detectors

Hiroki Takesue, Shellee D. Dyer, Martin J. Stevens, Varun Boehm Verma, Richard P. Mirin, Sae Woo Nam

Published Jan 1, 2015• 1 citation
Publisher

Abstract

Using high-efficiency superconducting nanowire single-photon detectors based on MoSi, we successfully achieved quantum teleportation of weak coherent states over 100 km of fiber with an average fidelity of 82.9% for six distinct input states.
DOI
10.1364/cleo_qels.2015.ff1a.4

Related papers

Quantum teleportation over 100 km of fiber using highly efficient superconducting nanowire single-photon detectors

Hiroki Takesue, Shellee D. Dyer, Martin J. Stevens +3 more

Quantum teleportation is an essential quantum operation by which we can transfer an unknown quantum state to a remote location with the help of quantum entanglement and classical communication. Since the first experimental demonstrations using photonic qubits and continuous variables, the distance of photonic quantum teleportation over free space channels has continued to increase and has reached >100 km. On the other hand, quantum teleportation over optical fiber has been challenging, mainly because the multi-fold photon detection that inevitably accompanies quantum teleportation experiments has been very inefficient due to the relatively low detection efficiencies of typical telecom-band single photon detectors. Here, we report efficient quantum teleportation over optical fiber using four high-detection efficiency superconducting nanowire superconducting single-photon detectors (SNSPD) based on MoSi. These SNSPDs make it possible to perform highly-efficient multi-fold photon measurements, allowing us to confirm that the quantum states of input photons were successfully teleported over 100 km of fiber.

arXiv:1510.00476•Optica•Sep 22, 2015•150 citations

Teleportation Systems Toward a Quantum Internet

Raju Valivarthi, Samantha I. Davis, Cristián Peña +20 more

Quantum teleportation is essential for many quantum information technologies, including long-distance quantum networks.Using fiber-coupled devices, including state-of-the-art low-noise superconducting nanowire single-photon detectors and off-the-shelf optics, we achieve conditional quantum teleportation of time-bin qubits at the telecommunication wavelength of 1536.5 nm.We measure teleportation fidelities of ≥ 90% that are consistent with an analytical model of our system, which includes realistic imperfections.To demonstrate the compatibility of our setup with deployed quantum networks, we teleport qubits over 22 km of single-mode fiber while transmitting qubits over an additional 22 km of fiber.Our systems, which are compatible with emerging solid-state quantum devices, provide a realistic foundation for a high-fidelity quantum Internet with practical devices.

arXiv:2007.11157•PRX Quantum•Dec 4, 2020•126 citations

High-efficiency UV Superconducting Nanowire Single-photon Detectors from Amorphous MoSi

Emma E. Wollman, Varun Boehm Verma, Ryan M. Briggs +5 more

We demonstrate high-efficiency detection of 370 nm photons using superconducting nanowire single-photon detectors. The detectors employ amorphous MoSi (bulk Tc = 6.8 K) to enable operation on a compact cryocooler system.

Conference on Lasers and Electro-Optics•Jan 1, 2016•2 citations

High-Rate Quantum Key Distribution with Superconducting Nanowire Single Photon Detectors

Eric A. Dauler, Neal W. Spellmeyer, Andrew J. Kerman +4 more

We demonstrate the potential for 1.85 Mbit/s secure key rates over 101 km of fiber, >100 times faster than previously demonstrated, using the differential phase shift quantum key distribution protocol and superconducting nanowire single-photon detectors.

Conference on Lasers and Electro-Optics•Jan 1, 2010•6 citations

Superconducting nanowire single-photon detectors: recent progress

Xiaolong HuYuhao, ChengChao Gu, Xiaotian ZhuHaiyi Liu

Research of superconducting nanowire single- photon detectors (SNSPDs) has been progressing rapidly in recent years. The combined properties of high efficiency, low noise, and fast speed of SNSPDs permit its applications ranging from long-distance quantum teleportation to moon- to-earth optical communications. Here we briefly discussed recent progress of SNSPDs, in particular (1) tungsten- silicide SNSPDs, (2) waveguide-integrated SNSPDs, and (3) a few applied demonstrations.

•Jan 1, 2015•0 citations

Long-Distance Quantum Teleportation and High-Dimensional Entanglement Distribution Over Optical Fiber

Hiroki Takesue, Takuya Ikuta

We present two technologies for advanced quantum communication systems. The first is quantum teleportation over 100 km of fiber using highly-efficient superconducting single photon detectors. The second is generation and long-distance distribution of high-dimensional time-bin entanglement, which was enabled by using cascaded delay interferometers.

IEEE/LEOS Summer Topical Meetings•Jul 1, 2018•0 citations
Quantum teleportation is an essential quantum operation by which we can transfer an unknown quantum state to a remote location with the help of quantum entanglement and classical communication. Since the first experimental demonstrations using photonic qubits and continuous variables, the distance of photonic quantum teleportation over free space channels has continued to increase and has reached >100 km. On the other hand, quantum teleportation over optical fiber has been challenging, mainly because the multi-fold photon detection that inevitably accompanies quantum teleportation experiments has been very inefficient due to the relatively low detection efficiencies of typical telecom-band single photon detectors. Here, we report efficient quantum teleportation over optical fiber using four high-detection efficiency superconducting nanowire superconducting single-photon detectors (SNSPD) based on MoSi. These SNSPDs make it possible to perform highly-efficient multi-fold photon measurements, allowing us to confirm that the quantum states of input photons were successfully teleported over 100 km of fiber.
Quantum teleportation is essential for many quantum information technologies, including long-distance quantum networks.Using fiber-coupled devices, including state-of-the-art low-noise superconducting nanowire single-photon detectors and off-the-shelf optics, we achieve conditional quantum teleportation of time-bin qubits at the telecommunication wavelength of 1536.5 nm.We measure teleportation fidelities of ≥ 90% that are consistent with an analytical model of our system, which includes realistic imperfections.To demonstrate the compatibility of our setup with deployed quantum networks, we teleport qubits over 22 km of single-mode fiber while transmitting qubits over an additional 22 km of fiber.Our systems, which are compatible with emerging solid-state quantum devices, provide a realistic foundation for a high-fidelity quantum Internet with practical devices.