Anyone Listening? Quantum Cryptography Applications with Vlatko Vedral
Finding Genius Podcast
Richard Jacobs
4.4 • 1K Ratings
🗓️ 16 October 2020
⏱️ 35 minutes
🧾️ Download transcript
Summary
Upgrading isn't just for phone systems. Quantum information science tackles the upgrade of old existing technologies, which run by classical physics laws, to those that function in the quantum realm. It's as easy as it sounds: Vlatko Vederal tells listeners what this entails and what possibilities researchers like him are working toward.
Listen and learn
- What order researchers must move in to do this transfer, from quantum cryptography research to large-scale quantum computing,
- Why quantum cryptography offers a much more secure channel of communication, and
- What timeline will this upgrade follow and how soon might we be carrying around quantum laptops.
Vlatko Vedral is a professor at University of Oxford in Quantum Information Science. He explains his field in helpful terms, comparing classical technologies with quantum technologies like quantum computing applications. His useful analogies give listeners a comprehensive picture of what this will look like and he provides a specific timeline. First, he says, quantum cryptography will take more of a center stage because it's the simplest one to begin with. Then there will be a shift towards implementing quantum memory, and finally, in the next ten years or so, we will see upgrades to large scale quantum computers.
His explanation about how quantum cryptography helps elucidate the challenges for all quantum applications. Basically, if two people are trying to communicate using quantum bits, anyone eavesdropping is forced to a take measurement and collapse the communication to classical properties. This makes their listening-in detectable because that action will emit a lower fidelity, giving them away.
He and Richard then discuss more fascinating potentials and the challenges they present, which tend to center on the error rate and physical necessities. For example, they must cool an atom to an extremely low temperature. As more cubits are added, the system gets hotter and noisier. Their only current solution is to do error correction, but researchers like Vedral are working towards better techniques. So listen in for these exciting possibilities.
For more, see his website: quantumlah.org/research/group/vlatko.
Available on Apple Podcasts: apple.co/2Os0myK
Transcript
Click on a timestamp to play from that location
| 0:00.0 | Forget frequently asked questions common sense common knowledge or Google how about advice from a real genius |
| 0:06.8 | 95% of people in any profession are good enough to be qualified and licensed 5% go and beyond. They become very good at what they do. |
| 0:15.1 | But only 0.1% are real Jesus. |
| 0:18.3 | Richard Jacobs has made it his life's mission to find them for you. |
| 0:22.4 | He hunts down and interviews geniuses in every field, sleep science, cancer, stem cells, |
| 0:27.2 | ketogenic diets, and more. |
| 0:28.8 | Here come the geniuses. |
| 0:30.4 | This is the Finding Genius Podcast. |
| 0:33.0 | That is Richard Jacobs. |
| 0:35.0 | Hello, this is Richard Jacobs with the Finding Genius Podcast. |
| 0:41.0 | I have Lach Gilvajral, is a professor at the University of Oxford. He works on quantum information science. So of Lachow, thank you for coming. How you doing? |
| 0:51.0 | I'm doing really well. Thanks a lot for inviting me. Yeah I know you know a little bit about |
| 0:58.0 | quantum mechanics and quantum type issues but what is a quantum informational science what's that about? |
| 1:03.0 | Quantum information science is about upgrading all the existing technologies |
| 1:10.6 | that rely on the laws of classical physics really into the quantum realm, which is the realm that is |
| 1:19.6 | obeyed by small objects like atoms and molecules and particles of light photons and all of that. |
| 1:27.2 | And what we are trying to do is encode bits of information, not into large systems like conductors for instance but we're trying to go down to the level of an individual atom and of course the laws of physics completely change from classical to quantum there and instead of just having two different states which encode one classical bit, we now get infinitely many states if you like, which is what we call a quantum |
| 1:57.7 | bit. So a quantum bit can be in two different states at the same time, which is really the key difference between quantum and |
| 2:05.1 | classical information. |
| 2:06.1 | So how do you think a transition from current computing would go to quantum-based architecture? |
| 2:12.8 | Is it the storage first would be, you know, secured, |
| 2:16.4 | let's say, by quantum cryptography, |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from Richard Jacobs, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of Richard Jacobs and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2026.