The quantum internet will be untappable, practical and scalable - Demonstration of MDI-QKD

On 6 July 2021, QuTech, KPN and Cisco demonstrated an important step towards an accessible quantum internet.
Engineers from QuTech (a collaboration between TU Delft and TNO) can provide untappable communication that is cost-scaling to many users by using measurement-device independent (MDI) quantum key distribution (QKD). A notable side-feature is that conventional internet operates in parallel, on the same optical fibre.
=== Content of this video ===
00:00 Introduction by Anne-Marije Zwerver (PhD student at QuTech)
01:38 Introduction of the panelists Dr Joshua Slater (QuTech), Dr Victoria Lipinska (KPN) and Jesse Robbers (Quantum Delta NL)
03:25 Welcome by Prof Dr Stephanie Wehner (QuTech)
04:33 Panel discussion
06:50 Equipment move
14:10 Demonstration part 1
19:00 Demonstration part 2
27:30 Demonstration part 3
29:55 Congratulatory messages by Dr Thomas Skordas, Hein Dekkers, Paul Slootmaker and Col Mietta Groeneveld, Msc
32:43 Introduction Dr Kees Eijkel (QuTech)
38:36 Q&A
55:48 Closing
=== Want to know more? ===
To learn more, please watch the animation we made: • Untappable quantum cry...
To learn more about the engineering, please read the news article we wrote: qutech.nl/2021/07/06/untappab...
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[@chetanwaghmare3166]

for quantum technology where very few videos are available, a video like this where practical implementation of the technology is demonstrated is really motivating. Thank you.

[@danielenzo4586]

How "far" can a quantum channel go? In case of optical fibre, free space or an optical network? I did watch a chinese presentation in which they claimed to have sent it 19km through free space. How about optical fibre/ nets? Is it possible to send raw quantum information (polarized photons) through the internet without spinning it on the way?

[@someonescrazyuncle3212]

better than ESC