High-Temperature Superconductivity Understood at Last
The Quanta Podcast
Quanta Magazine
4.7 • 644 Ratings
🗓️ 1 February 2023
⏱️ 15 minutes
🧾️ Download transcript
Summary
A new atomic-scale experiment all but settles the origin of the strong form of superconductivity seen in cuprate crystals, confirming a 35-year-old theory. Read more at QuantaMagazine.org. Music is “Quasi Motion” by Kevin MacLeod.
Transcript
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| 0:00.0 | Welcome to Quantum Magazine's podcast. |
| 0:07.0 | Each episode, we bring you stories about developments in science and mathematics. |
| 0:12.0 | I'm Susan Vallett. |
| 0:13.0 | For decades, a family of crystals has stumped physicists with its baffling ability |
| 0:19.0 | to superconduct electricity at far warmer temperatures than other |
| 0:23.9 | materials. But now, an atomic scale experiment sheds new light on this mystery. That's next. |
| 0:35.2 | Quantum Magazine is an editorially independent online publication supported by the |
| 0:40.8 | Simon's Foundation to enhance public understanding of science. |
| 0:49.8 | We now finally know why a family of crystals can perfectly conduct an electric current at far warmer |
| 0:56.8 | temperatures than other materials. |
| 0:59.5 | That's because an experiment years in the making has directly visualized superconductivity |
| 1:05.2 | on the atomic scale in one of those crystals. |
| 1:09.2 | Electrons appear to nudge each other into a frictionless flow in a matter |
| 1:13.0 | first suggested by a theory nearly as old as the mystery itself. Subir Sachtev, a physicist at |
| 1:19.8 | Harvard University, who builds theories of the crystals, known as Kupreys, says the evidence is |
| 1:25.9 | beautiful and direct. |
| 1:30.1 | Satchdev wasn't involved in the experiment. |
| 1:35.6 | J.C. Seamus Davis led the new experiment at the University of Oxford. |
| 1:37.8 | He talked with reporter Charlie Wood. |
| 1:39.8 | It was really exciting, actually. |
| 1:44.5 | Since I've worked on this problem for 25 years, and I hope I have solved it. |
| 1:47.5 | I'm absolutely surreal. I would like to do something else. |
... |
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