Fiber transport of spatially entangled photons
W. L\"offler, T. G. Euser, E. R. Eliel, M. Scharrer, P., St.J. Russell, J. P. Woerdman
TL;DR
This paper demonstrates the use of hollow-core photonic crystal fiber to effectively transmit spatially entangled photon pairs, advancing practical quantum communication technologies.
Contribution
It introduces a novel method for transporting spatially entangled photons through a specialized optical fiber supporting multiple modes.
Findings
Successful transmission of entangled photons through the fiber
Preservation of entanglement after transport
Potential for scalable quantum communication
Abstract
Entanglement in the spatial degrees of freedom of photons is an interesting resource for quantum information. For practical distribution of such entangled photons it is desireable to use an optical fiber, which in this case has to support multiple transverse modes. Here we report the use of a hollow-core photonic crystal fiber to transport spatially entangled qubits.
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