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arXiv · 2007.11157

Teleportation Systems Towards a Quantum Internet

Raju Valivarthi·Samantha Davis·Cristian Pena·Si Xie·Nikolai Lauk·Lautaro Narvaez·Jason P. Allmaras·Andrew D. Beyer·Yewon Gim·Meraj Hussein·George Iskander·Hyunseong Linus Kim·Boris Korzh·Andrew Mueller·Mandy Rominsky·Matthew Shaw·Dawn Tang·Emma E. Wollman·Christoph Simon·Panagiotis Spentzouris·Neil Sinclair·Daniel Oblak·Maria Spiropulu
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Abstract

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 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.

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Raju Valivarthi, Samantha Davis, Cristian Pena, Si Xie, Nikolai Lauk, Lautaro Narvaez, Jason P. Allmaras, Andrew D. Beyer, Yewon Gim, Meraj Hussein, George Iskander, Hyunseong Linus Kim, Boris Korzh, Andrew Mueller, Mandy Rominsky, Matthew Shaw, Dawn Tang, Emma E. Wollman, Christoph Simon, Panagiotis Spentzouris, Neil Sinclair, Daniel Oblak, Maria Spiropulu. 2020-07-22. Teleportation Systems Towards a Quantum Internet. https://doi.org/10.1103/prxquantum.1.020317

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