Teleportation Systems Toward a Quantum Internet

Illinois Express Quantum Network for Distributing and Controlling Entanglement on Metro-Scale

“…Using fiber-coupled devices, including state-of-the-art lownoise superconducting nanowire single photon detectors and off-the-shelf optics, the Q-LAN1 systems achieve quantum teleportation of time-bin qubits at the telecommunication wavelength of 1536.5 nm [9]. We measure teleportation fidelities of > 90% that are consistent with an analytical model of our system, which includes realistic imperfections.…”

Quantum Information Science for Particle Theorists

“…Quantum Information for Particle Theorists Quantum teleportation over large distances is not a thought experiment anymore. The Alliance for Quantum Technologies INQNET program, led by Caltech, has already commissioned high performance quantum teleportation systems at Fermilab and Caltech that use near-infrared photons moving over standard telecom fiber, with two time bins as the computational basis for the photonic qubit [9]. Other national labs are developing similar systems, as part of the recently announced DOE Quantum Internet Blueprint [10], which will connect all 17 DOE national labs with a high performance quantum teleportation network -not quite "Beam me up Scotty" but still quite impressive.…”

“…Figure (9) shows the time evolution of the entanglement entropy ( ( )), as well as the magnitude of the off-diagonal terms in ( ). The figure is misleading in that for sufficiently large one will start to see periodic behavior again, but again this is expected since our "Environment" Hilbert space has only four states!…”

“…At the beginning of 2017, Fermilab did not have a quantum science program. Today in we have SQMS [31] a National QIS Research Center; we lead a national QIS theory consortium; we have an algorithms group working on quantum computers to explore applications of quantum machine learning, and we are helping to build and host the world's leading quantum teleportation system [9]. We also host multiple groups developing quantum sensor technologies for new kinds of particle physics experiments with unprecedented sensitivities.…”

Metrology Perspective of Single‐Photon Detectors: Review on Global Calibration Methods

“…Various groups have already tested quantum teleportation of qubits and quantum key distribution on fiber communication lines. [ 1–4,58 ] It is expected that we will soon see more applications emerging from these quantum technologies. This sets in demand for a better system and improved parameter measurement techniques that are traceable for testing and dissemination purposes.…”