Chiara Marletto: The Experiment That Could Reveal Quantum Gravity

Theories of Everything with Curt Jaimungal

Curt Jaimungal

Physics, Philosophy, Society & Culture, Science

4.6 • 606 Ratings

🗓️ 4 November 2024

⏱️ 93 minutes

🔗️ Recording | iTunes | RSS

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Summary

Chiara Marletto and Vlatko Vedral reveal quantum gravity experiments challenging Einstein's general relativity. They examine how quantum‑information methods and Constructor Theory might reshape our understanding of fundamental physics.0:00 Introduction: Potential Falsification of General Relativity4:50 The Quantum Gravity Conundrum9:30 Gravitationally Induced Entanglement (GIE) Explained14:10 Challenges in Testing Quantum Gravity with Current Technology19:00 Unifying Quantum Mechanics and General Relativity23:45 Constructor Theory’s Contribution to Quantum Gravity28:30 Designing the GIE Experiment: Micro Crystals and Superposition33:15 Technological Hurdles in Implementing GIE38:00 Comparing GIE with Previous Experiments (Bose, Sugato)42:50 Feasibility Studies and Experimental Setup Insights47:35 Funding Fundamental Physics: Challenges and Strategies52:20 AI’s Nobel Prize Controversy and Its Impact on Physics57:10 Public Awareness and the Current State of Fundamental Physics1:02:00 Future Directions in Quantum Gravity and Constructor Theory1:07:45 Advice for Researchers: Bridging Theory and Experiment1:13:30 Guidance for Young Physicists: Following Passion Over TrendsSPONSORS:- I personally subscribe to The Economist. TOE listeners get 35% off the annual subscription. No other podcast has this! https://economist.com/TOERESOURCES:- New Substack! Follow my personal writings and EARLY ACCESS episodes here: https://curtjaimungal.substack.com- Chiara Marletto’s website: https://www.chiaramarletto.com/- Vlatko Vedral’s website: https://www.vlatkovedral.com/- Constructor Theory website: https://www.constructortheory.org/- Learn more & support Chiara and Vlatko’s projects: https://wolfsonquantumhub.squarespace.com/- Chiara’s last appearance on TOE: https://www.youtube.com/watch?v=40CB12cj_aM- Chiara and Vlatko’s paper on Quantum-information methods: https://arxiv.org/html/2410.07262v1- Jonathan Oppenheim on TOE: https://www.youtube.com/watch?v=NKOd8imBa2s- Roger Penrose on TOE: https://www.youtube.com/watch?v=sGm505TFMbU- Chiara and Vlatko’s additional papers: https://www.physics.ox.ac.uk/our-people/marletto/publications?page=3- The Dark History of Anti-Gravity (TOE): https://www.youtube.com/watch?v=eBA3RUxkZdc- Ai wins big at the Nobels (Economist article): https://www.economist.com/science-and-technology/2024/10/10/ai-wins-big-at-the-nobels- Support TOE on Patreon: https://patreon.com/curtjaimungal (early access to ad-free audio episodes!)- Listen to TOE on Spotify: https://open.spotify.com/show/4gL14b92xAErofYQA7bU4e- Become a YouTube Member Here: https://www.youtube.com/channel/UCdWIQh9DGG6uhJk8eyIFl1w/join- Join TOE's Newsletter 'TOEmail' at https://www.curtjaimungal.org- Twitter: https://twitter.com/TOEwithCurt- Discord Invite: https://discord.com/invite/kBcnfNVwqs- iTunes: https://podcasts.apple.com/ca/podcast/better-left-unsaid-with-curt-jaimungal/id1521758802- Subreddit r/TheoriesOfEverything: https://reddit.com/r/theoriesofeverything 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

Transcript

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0:00.0	It would be the first falsification, if you like, of general relativity.
0:04.7	To me, that sounds mind-blowing.
0:06.6	This is possibly the biggest outstanding problem in physics at present.
0:13.6	What if everything we thought we knew about testing quantum gravity was wrong?
0:18.6	For almost an entire century, physicists believed that probing gravity's quantum nature
0:24.3	would require some massive particle accelerator, the size of our solar system.
0:29.6	But Professor Kiara Marletto and Professor Vladko Vidraal of Oxford have both discovered something revolutionary.
0:37.3	We identify the sweet spot.
0:39.5	The theories that are mainly classical, such as Penrises' collapse model, would be refuted.
0:46.6	A way to test quantum gravity using pretty much today's technology.
0:52.1	Their groundbreaking proposal, known as gravitationally induced entanglement,
0:56.8	could become the first experiment to prove that gravity itself has quantum properties,
1:03.0	falsifying Einstein's classical theory of general relativity. I'm Kurt Jaimungle, and on this channel,
1:09.6	I explore unification in physics and philosophy
1:12.1	using my background in mathematical physics from the University of Toronto.
1:16.6	Today, it's a special treat with staggering implications from Oxford's K.R. Marletto,
1:22.3	who I spoke to before on Constructor Theory, link is in the description, and Vladko Vidraal.
1:29.3	If successful, this would mark the first experimental evidence that gravity must be described by quantum mechanics,
1:35.6	radically redefining our understanding of the force that not only shapes our universe, but in some
1:42.1	sense is the backbone of our universe.
1:45.7	Kiarre Marletto, Vladko Vitral, thank you so much for coming onto the podcast. Welcome.
1:51.5	Thank you for, yeah, for having us.
	...

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