Lorentz Violation Explained: Sean Carroll -- Is the Universe Twisted?

#LorentzViolation #SeanCarroll #ChernSimons In 1990, Sean Carroll, George Field, and Roman Jackiw wrote an epochal paper about Lorentz Violation in astronomy that had a tremendous impact on physics and me, in particular.

Recently, extraction of such a parity-violating effect in Cosmic Microwave Background observations by Planck was announced in Physical Review Letters: https://journals.aps.org/prl/accepted/b0070Yf9I0214c6835b00d89342658c8255c84496

In this conversation, Sean explains the meaning of Lorentz invariance violation and the background physics behind this effect. We also discuss the implications for physics if the recent claims are confirmed by upcoming polarimeters or other convincing evidence is found.

I will discuss some of the experimental challenges to making such measurement and prospects for upcoming experiments such as CLASS, BICEP Array, SPT3G, Simons Array, ACT, LiteBIRD, Simons Observatory, and CMB Stage 4 to make a definitive, high confidence level claim.

Here is some homework 😂
1) Subscribe to Sean's Channel: https://www.youtube.com/channel/UCRhV1rWIpm_pU19bBm_2RXw?sub_confirmation=1
2) Enjoy this video from the SETI institute on cosmic birefringence, including a 1997 claim that Sean refuted, that I presented 4 years ago https://www.youtube.com/watch?v=QywRTlcocBE
3) Read the original paper by Carroll, Field, and Jackiw: https://www.researchgate.net/publication/13277928_Limits_on_a_Lorentz-_and_parity-violating_modification_of_electrodynamics
4) And, read the abstract of the current paper, accepted for publication in PRL: https://journals.aps.org/prl/accepted/b0070Yf9I0214c6835b00d89342658c8255c84496
5) Watch my review of Sean's book, The Big Picture https://www.youtube.com/watch?v=Gg4t_snAPwY?sub_confirmation=1
6) Watch my interview with Sean about his latest book, Something Deeply Hidden: https://www.youtube.com/watch?v=BKEXbSe0hV0?sub_confirmation=1
7) DOWNLOAD THE SLIDES HERE: https://briankeating.com/blog.php

00:00 INTRO
05:00 THE CONTROVERSY
10:00 WHAT IS LORENTZ VIOLATION
20:00 CALIBRATION OF POLARIZATION
50:00 WHY SEAN IS DUBIOUS?
1:00:00 FINAL THOUGHTS

Watch my most popular videos:
Sir Roger Penrose, Nobel Prize winner: https://www.youtube.com/watch?v=AMuqyAvX7Wo

Eric Weinstein: https://youtu.be/YjsPb3kBGnk?sub_confirmation=1
Sir Roger Penrose https://youtu.be/H8G5onAqlVo?sub_confirmation=1
Juan Maldacena's First Podcast Interview: https://youtu.be/uIzTliTHn7s?sub_confirmation=1
Jim Simons: https://youtu.be/6fr8XOtbPqM?sub_confirmation=1
Sara Seager Venus LIfe: https://youtu.be/QPsEDoOTU6k?sub_confirmation=1
Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1
Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk?sub_confirmation=1
Sarah Scoles: https://youtu.be/apVKobWigMw
Stephen Wolfram: https://youtu.be/nSAemRxzmXM

Sean Michael Carroll (born October 5, 1966) is a theoretical physicist specializing in quantum mechanics, gravity, and cosmology. He is a research professor in the Walter Burke Institute for Theoretical Physics in the California Institute of Technology Department of Physics.[1] He has been a contributor to the physics blog Cosmic Variance, and has published in scientific journals such as Nature as well as other publications, including The New York Times, Sky & Telescope, and New Scientist.
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Видео Lorentz Violation Explained: Sean Carroll -- Is the Universe Twisted? канала Dr Brian Keating