How to Send a Secret Message Using Quantum Physics | Quantum Cryptography

You want to send somebody a message, but you want it to be IMPOSSIBLE for anyone else to read it. No problem: quantum physics has got your back. #WorldQuantumDay https://www.quantum.gov/ ⚛️Don't miss any video: you just have to... SUSCRIBE, it's FREE!: https://www.youtube.com/channel/UCJnvnq1kQMvxIeGWw1eQlqA?sub_confirmation=1 🐦Follow me on TWITTER! https://twitter.com/QFractureEN 📱On TIKTOK https://www.tiktok.com/@qfractureen 📸And (yeah, duh) on INSTAGRAM too! https://www.instagram.com/qfractureen/ 🌐 Our Website! https://quantumfracture.es/ Watch this video in spanish: https://youtu.be/7R7dnT2043M The paper this video is based on. You have a summary of the protocol in the final paragraph: https://arxiv.org/pdf/1312.1463.pdf ​ REFERENCES Bob‘s hair Credit: David Jackmanson, flickr.com https://www.flickr.com/photos/djackmanson/43363625724/ Alice’s hair Credit: ierdnall, flickr.com https://www.flickr.com/photos/90157732@N03/27083561696/ Bowtie Credit: Sylvain Kalache, flickr.com https://www.flickr.com/photos/sylvainkalache/8270237748/ Bulb Credit: CreativeTools.se - PackshotCreator - Light bulb https://www.flickr.com/photos/creative_tools/4315378855 Texture book Credit: textures.com https://www.textures.com/download/bookcovers0125/106575 Airport Credit: Kaustav Das Modak, flickr.com https://www.flickr.com/photos/kaustav_das_modak/9665583696/ Hotel Credit: Jonas Bengtsson, flickr.com https://www.flickr.com/photos/jonasb/3135709849/ Coffee shop Credit: John Beans, flickr.com https://www.flickr.com/photos/147592390@N06/33722984218/ Animations here shown are not intended to be precise, but show qualitative characteristics. They have educational purposes.