What Is Quantum Teleportation?
The Joy of Why
Steven Strogatz, Janna Levin and Quanta Magazine
4.9 • 577 Ratings
🗓️ 14 March 2024
⏱️ 30 minutes
🧾️ Download transcript
Summary
Quantum teleportation isn’t just science fiction; it’s entirely real and happening in laboratories today. But teleporting quantum particles and information is a far cry from beaming people through space. In some ways, it’s even more astonishing. John Preskill, a theoretical physicist at the California Institute of Technology, is one of the leading theoreticians of quantum computing and information. In this episode, co-host Janna Levin interviews him about entanglement, teleporting bits from coast to coast, and the revolutionary promise of quantum technology.
Transcript
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| 0:00.0 | When I say the word teleportation, what comes to mind? Maybe it's the transporter from Star Trek, |
| 0:16.6 | instantly beaming the crew down to a planet, or the time-traveling Tardis of Doctor Who. |
| 0:22.6 | In science fiction, |
| 0:24.6 | teleportation is an expedient device |
| 0:26.6 | to deliver people from one place to another |
| 0:29.6 | with no time wasted on the journey. |
| 0:32.6 | But quantum teleportation, |
| 0:35.6 | well, that's something dramatically different and entirely real. |
| 0:42.3 | I'm Jan 11, and this is The Joy of Why, a podcast from Quantum Magazine, where I take turns at the mic with my co-host, Steve Strogetz, exploring some of the biggest questions in math and science today. |
| 1:00.0 | Quantum teleportation is the power to disappear from one location and appear to another without traveling in between. |
| 1:07.0 | Though we may never match the movies, the technology will likely revolutionize communications, |
| 1:13.0 | computing, and our understanding of the world around us. Today we're joined by one of the leading |
| 1:18.7 | experts on quantum teleportation. John Preskell is a professor of theoretical physics |
| 1:24.9 | at the California Institute of Technology, and the founder and current leadership chair of the Institute for Quantum Information and Matter. |
| 1:33.9 | His research has explored particle physics, quantum field theory, and quantum aspects of the early universe in black holes. |
| 1:42.3 | His current work applies this research to intractable problems in |
| 1:46.8 | quantum computing and information. John, welcome to the joy of why. Glad to be here, Jana. |
| 1:53.9 | Glad to have you. I want to get into the details of this incredibly technical subject, but can you start us off with one of the |
| 2:03.9 | core concepts, which is the idea of entanglement, quantum entanglement? |
| 2:08.6 | Well, entanglement is the word we use for the characteristic correlations between parts |
| 2:16.8 | of a quantum system. |
| 2:18.3 | First of all, what do we mean by a correlation? |
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