Nikita Nekrasov: Why Physicists Still Don't Understand QFT

Theories of Everything with Curt Jaimungal

Curt Jaimungal

Physics, Philosophy, Society & Culture, Science

4.6 • 606 Ratings

🗓️ 14 July 2025

⏱️ 105 minutes

🔗️ Recording | iTunes | RSS

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Summary

Nikita Nekrasov explains why quantum field theory remains mysterious despite experimental success. We explore his solution to the Cyberg‑Witten puzzle, the Nekrasov partition function, and the role of exotic four‑dimensional structures in the chemistry of life.- 00:00 - Introduction- 01:13 - Understanding Quantum Field Theory- 04:38 - The Journey to Gauge Origami- 06:53 - The Story of the Microsoft Partition Function- 19:12 - Connecting Quantum Mechanics and Field Theory- 36:43 - The Nature of Instantons- 45:05 - Exotic R4 and Its Implications- 49:01 - Dealing with Non-Compactness- 52:25 - The Emergence of Non-Commutative Geometry- 1:04:29 - Lessons from Mentors- 1:20:11 - Language as a Dynamic System- 1:22:35 - The Concept of Gauge Origami- 1:30:48 - Insights from Collaboration with Peers- 1:37:15 - Aspirations for Future Work- 1:38:15 - Advice for Aspiring ResearchersSPONSORS:- I personally subscribe to The Economist. TOE listeners get 35% off the annual subscription. No other podcast has this! https://economist.com/TOE- YouTube Membership (Early Access Videos): https://www.youtube.com/channel/UCdWIQh9DGG6uhJk8eyIFl1w/join- Patreon: https://patreon.com/curtjaimungal- Crypto: https://commerce.coinbase.com/checkout/de803625-87d3-4300-ab6d-85d4258834a9- PayPal: https://www.paypal.com/donate?hosted_button_id=XUBHNMFXUX5S4RESOURCES:- Join My New Substack (Personal Writings): https://curtjaimungal.substack.com- Listen on Spotify: https://open.spotify.com/show/4gL14b92xAErofYQA7bU4e- Nikita’s Papers: https://scholar.google.com/citations?user=bKV59LwAAAAJ&hl=en- Nikita’s Lecture: https://scgp.stonybrook.edu/archives/44062- Two Dimensional Gauge Theories [Paper]: https://arxiv.org/pdf/hep-th/9204083- Richard Borcherds [TOE]: https://youtu.be/U3pQWkE2KqM- Edward Frenkel [TOE]: https://youtu.be/n_oPMcvHbAc- Edward Frenkel’s Presentation [TOE]: https://youtu.be/RX1tZv_Nv4Y- Edward Frenkel’s Presentation [Part 2]: https://youtu.be/0AC-Ol1z5vI- String Theory Iceberg [TOE]: https://youtu.be/X4PdPnQuwjY- Roger Penrose [TOE]: https://youtu.be/sGm505TFMbU- Cumrun Vafa [TOE]: https://youtu.be/kUHOoMX4Bqw- Garrett Lisi [TOE]: https://youtu.be/z7ulJmfFvd8- Chiara Marletto [TOE]: https://youtu.be/Uey_mUy1vN0- Debunking "All Possible Paths" [TOE]: https://youtu.be/XcY3ZtgYis0- Peter Woit [TOE]: https://youtu.be/TTSeqsCgxj8- Leonard Susskind [TOE]: https://youtu.be/2p_Hlm6aCok- Seiberg-Witten Prepotential from Instanton Counting [Paper]: https://arxiv.org/pdf/hep-th/0206161- Eva Miranda [TOE]: https://youtu.be/6XyMepn-AZo- Leptons and Quarks [Book]: https://www.amazon.com/LEPTONS-QUARKS-SPECIAL-COMMEMORATING-DISCOVERY/dp/9814603007- Brian Greene [TOE]: https://youtu.be/O2EtTE9Czzo- David Wallace [TOE]: https://youtu.be/4MjNuJK5RzM- Jenann Ismael [TOE]: https://youtu.be/7kvXihDAOi0- Claudia de Rham [TOE]: https://youtu.be/hNPMKy6RxCE- Yang-Mills [Paper]: https://arxiv.org/pdf/2504.19097 Theories of Everything with Curt Jaimungal features long-form, technically detailed interviews with leading researchers in physics, mathematics, consciousness, and philosophy, exploring topics at the level of active research. For academics, graduate students, and anyone seeking depth beyond popular science. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	Some people will say they, of course, understand everything about quantum field theory,
0:03.5	but we don't understand it as their complete structure.
0:07.0	To really understand superposition as a quantum, you have to be a quantum entity.
0:13.2	Professor Dekita Necrosov unified previously disconnected fields,
0:18.1	instanton moduli spaces, random partitions, integrable systems, and quantum strings.
0:23.7	What was required was so novel that when he was presenting at conferences, other physicists
0:28.9	couldn't tell if his results contradicted or confirmed theirs.
0:32.6	His mentor, David Gross, advised him, keep your poker face.
0:36.7	That gamble paid off.
0:38.5	It turns out, four dimensions aren't arbitrary.
0:41.8	I'm Kurt Jai Mungle, and I interview researchers regarding their theories of reality with technical depth.
0:46.8	Today, we explore how non-commutative geometry cures quantum singularities,
0:51.4	why understanding superposition requires becoming quantum yourself, and Nikita's
0:55.4	speculative connection between R4's exotic smooth structures and the chemistry undergirding life
1:01.5	itself. From falling asleep during Witten's seminal lecture to late-night residue calculations
1:06.9	with Greg Moore, this is mathematical physics at its most human and revolutionary.
1:13.6	Why don't we understand quantum field theory?
1:16.6	So it probably depends on who you ask.
1:22.6	So some people will say they of course understand everything about quantum field theory.
1:26.6	Practitioners who use it,
1:30.7	they will tell you that they understand because they know how to use it and they know how to do
1:35.5	some calculations which will then can be maybe compared to experiment. And more often than not,
	...

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