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Shawn Ryan

πŸ‘€ Speaker
60410 total appearances
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The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

When I do this idealization where I pretend I'm in flat space, that's my world, and I want all of these solution sciences equations that obey these boundary conditions, then I see that things at the boundary are going to move.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

So what you're saying is I have these two detectors are sitting there.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

They're not just going to stay there.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

They're going to move, but they're going to move by a certain amount that's maybe a certain controlled parameter as compared to where they are if I just push them out to infinity.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

And so...

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

because you have this kind of whole symmetry framework that you're importing from other instances where it's been useful in physics, you can now apply it here and you realize, oh, look, that tells me something about soft limits and scattering, tells me something I can observe.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

Yeah.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

So early in my PhD, they had this connection between soft physics and a

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

um, asymptotic symmetry word identity.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

And then my first paper was on like the subleading soft version of that, which was new and some people had speculated that there might be a enhancement of the angular momentum, um, like the rotation symmetry of the, of the world in some sense.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

And then when you keep pushing that further, then you can tie it to this experimental version because someone else understood that there is a, um,

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

physical, like the space-time physical thing you're measuring is related to the waveform that otherwise computing with this quantum field theory computation.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

And yeah.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

So anyway, basically long story short is you were just taking some mathematical framework

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

and then trying to copy paste it to a new application.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

Once you have like one iteration, you're trying to see what's modular about like some computation.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

And then you get to import that and find something new because you pulled it out.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

Wow.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

Yeah.

The Shawn Ryan Show
#312 Sabrina Pasterski - Theoretical Physicist on the Hidden Code of the Universe

Wow.