"Building Celestial Holography" Dr. Sabrina Gonzalez Pasterski (Princeton)

Dr. Sabrina Gonzalez Pasterski (Princeton Center for Theoretical Science)
"Building Celestial Holography"
A fundamental curiosity to determine: what the symmetries of nature are, how black holes process quantum information, and what the ultimate ultraviolet description of our universe is leading us to look for a new framework to describe scattering.
Celestial Holography aims to apply the holographic principle to spacetimes with vanishing cosmological constant. It maps four-dimensional scattering matrix elements to correlators in a
two-dimensional conformal field theory living on the night sky. This map possesses a number of surprising features. It emphasizes infinite-dimensional symmetry enhancements, which are typically hidden in infrared factorization theorems for amplitudes; reorganizes
collinear limits as conformal field theory operator product expansions, and mixes ultraviolet and infrared behavior in a manner that will allow us to make general claims about scattering not obvious from perturbation theory.
At its foundation are three hallmarks of the infrared: asymptotic symmetries that transform our phase space, factorizations that occur when scatterers become soft, and memory effects that provide an experimental testing ground. We will start by reviewing the manner in which these ideas are interconnected, show how this footing leads us to Celestial Holography, and then review the current progress in constructing this holographic dictionary.

[@johnstifter]

Is there any approaches that use machine learning on the field amplitudes to derive what symmetries are there?

[@elpianista9999]

You'be a dr. Congratulations A big change

[@treatb09]

34:00 i dont specifically remember. I swear i remember looking up that symbol. But i can only find it in my personal notebook. N it is expressing infinity running in a particular direction. So i could express a vector. In infinite space. Conformal to two seperate directions. Of larger or smaller. By the direction it faces.

[@vladlempaleur987]

Sabrina is amazing !

[@E-2.71]

Sabrina is a Amazing Brilliant Woman, I know some areas of Physics....but I would feel like I was a puppy with a tilted head, if I talked to her!! I salute her for her mind, she is a Genius!!

[@leif1075]

Why on earth do you saybthat and why don't you think you could do the same as she?

[@AlphaTrad]

@@leif1075 Because she's at Einstein level and most people aren't.

[@elpianista9999]

Sabrina gonzalez pasterki

[@MrFloppyHare]

What was the reason for this comment..?

[@elpianista9999]

@@MrFloppyHare you comment its?

[@Malvin00]

❤️❤️

[@treatb09]

5:28 you never defined the n to length of a snake

[@timemechanicone]

I’m surprised your talking about adding gravity which is illogical. Gravity > magnetic field / ether Is your so called addition?. You’ve overlooked the main thing and called an addition;) just my view, don’t shoot. 🖖

[@MrFloppyHare]

"your talking"? "ether"? You really have no right to critique anything that this young woman says or does.

[@treatb09]

Wtf. People say im weird?!

[@treatb09]

15:00. I can help dumb it down. Variable axis of symmetry. Why two “m”s? Idk. Its not complicated physics for you in terms of math. But you lack translations. You keep saying “um”...