PRX: Entanglement beats the Noise

Artist’s depiction of entanglement surviving the onslaught of noise!
(Image credit: Harald Ritsch for IQOQI Vienna)

In our new paper on “Overcoming Noise in Entanglement Distribution” co-authored with colleagues in Austria, Finland, Germany, and Canada, we demonstrate how high-dimensional entanglement in the spatio-temporal degrees of freedom allows one to tolerate large amounts of noise that would generally lead to a loss of qubit, or two-dimensional entanglement. In other words, we certified entanglement with the laboratory lights on! This works demonstrates the potential for high-dimensional quantum states to not only enable high-capacity quantum networks, but also operate in realistic environmental conditions, such as in broad daylight or alongside classical data traffic. For more information, please read this APS synopsis.

Popular media coverage: Heriot-Watt press release, Wiener Zeitung, Orf.at.
Journal reference: Ecker et al, Phys. Rev. X 9, 041042 (2019), doi: 10.1103/PhysRevX.9.041042.

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