How do quantum computers actually work? Where does research stand in Switzerland? "Einstein" presenter Tobias Müller gets to the bottom of the phenomenon and finds out why these computers could change our lives. He visits researchers from ETH and IBM on the front line and tries to find out exactly what quantum computing is all about. 🔔 Subscribe now to SRF Wissen on YouTube 👉 / @srfwissen ⏰ A new episode of "Einstein" every Thursday at 5:30 p.m. More about the video –––––––––––––––––––––––––––– 💡 How does a quantum computer work? To understand this, "Einstein" presenter Tobias Müller has to delve into the world of quantum mechanics; this is what makes the concept of a quantum computer possible. But to do that, you first have to learn to understand this strange world and its disturbing laws of nature. 🙏 Hope Quantum computers will one day be superior to today's digital systems for solving highly complex tasks. However, quantum computers will not completely replace classical computing, but rather complement it in a very targeted way. We show in which areas of application the greatest hopes lie and what is already being invested in this. 🙋‍♀️ Threat Quantum computers will be able to crack the encryption methods we know - this has already been proven in theory. That is why classical computers are already being used to research algorithms that are intended to make our electronic encryption secure against quantum power - this is known as "post-quantum cryptography". 💻 Switzerland and the race for quantum computers Quantum research is becoming more and more important and strategic worldwide. This is becoming a problem for Switzerland right now: although international pioneering work has been done in this field in this country for years, exclusion from the EU Horizon research projects now threatens to leave them scientifically marginalized. But Swiss quantum researchers are fighting back. Watch directly: 00:00 Introduction 01:27 Seeing atoms 04:35 What is a quantum computer? 7:42 The ion trap 11:21 Why a quantum computer at all 13:04 Understanding qubits 15:41 Superposition 22:55 First analog computer 24:05 Idea of ​​the quantum computer 25:03 Entanglement in the quantum world 27:04 Quantum research in Switzerland 28:07 Risks of quantum computers 30:35 What is post-quantum cryptography? Links for more information: ► Harald Lesch: Quantum mechanics for beginners • Quantum mechanics for beginners Hara... ► What you always wanted to know about quantum computers https://www.all-electronics.de/elektr... ► Programming quantum computers: Just one phase? (heise.de) https://www.heise.de/hintergrund/Quan... ► Website of the NCCR QSIT (large CH national quantum research project 2011-2022) https://nccr-qsit.ethz.ch/ ________________________ ◾ Director: Andrea Fischli-Roth ◾ Editor: Christian Bachmann ◾ Moderation: Tobias Müller © 2023 SRF ________________________ This is Einstein: We tell stories that inform, educate and entertain. There are hardly any limits to the range of topics. Everyday phenomena and mysteries are just as important as complex scientific topics. We establish connections in order to bridge the gap between everyday life and science. Come with us on a fascinating journey into the world of knowledge. A new episode of "Einstein" every Thursday at 5:30 p.m. 📸 The «Einstein» moderation team on Insta: ► Kathrin Hönegger: / kathrinhoenegger ► Tobias Müller: / tobias._.mueller 👉 Would you like to suggest a topic to us? Then write to us: [email protected] MORE KNOWLEDGE, EVERY WEEK –––––––––––––––––––––––––––– 🔔 Subscribe to SRF Wissen on YouTube now and activate the bell: ► https://www.youtube.com/srfwissen?sub... 👇 More knowledge can be found here: 📰 Knowledge to read: https://www.srf.ch/wissen 🎧 Knowledge to listen to: https://www.srf.ch/audio/themen/wissen 👀 Knowledge to watch: https://www.srf.ch/play/tv/themen/wis... ________________________ 🧠Channel info: Discover, experience, understand, be amazed – that is SRF Wissen on YouTube. Here you will find fascinating videos from the subject areas of knowledge & science, environment & sustainability and health, nature & animals. All bundled on one channel. ______ Social Media Netiquette from SRF: ► https://www.srf.ch/social-netiquette #SRFWissen #SRFEinstein #Quantencomputer #WissenErleben #Wissenssendung #SRF #Doku