High Energy Physics Seminar this week (Gruzinov and Carneiro da Cunha)

[Paolo Creminelli]

Dear all,

two HECAP seminars this week! Paolo

HIGH ENERGY PHYSICS SEMINARS

Tuesday, 30 July 2024, at 16:00  -  Luigi Stasi Seminar Room - https://indico.ictp.it/event/10770/ <https://indico.ictp.it/event/107>
Andrei Gruzinov (NYU)

 “Aristotelian Electrodynamics of Pulsars"

Abstract
Pulsars are the workhorses/spoilers of fundamental physics searches: nanograv, axion to photon conversion, nuclear physics at high density, dark matter annihilation...
I will show what we know and what we don't know about how pulsars shine.


To join via Zoom:

https://zoom.us/j/98307550801 <https://zoom.us/j/98307550801>

Meeting ID: 98307550801

Passcode: 362457

-----------------------------------------------------------------------------------

Thursday, 1 August 2024, at 16:00  -  Luigi Stasi Seminar Room - https://indico.ictp.it/event/10769/ <https://indico.ictp.it/event/10769/>
Bruno Geraldo Carneiro da Cunha (Universidade Federal de Pernambuco)

 “Geometrical Phases in Massive Perturbations of Kerr Black Holes "

Abstract
Linear perturbations of black hole backgrounds are relevant to a number of applications, from the ringdown phase of merger events to stability and AdS/CFT. The usual method to study the spectrum of these quasi-normal modes breaks down near the interesting extremal case. This hindrance was overcome recently by exploring the analogy between the differential equations that describe the perturbations and conformal blocks in conformal field theories. We use the analogy to explore scalar massive perturbations of the Kerr black hole near extremality, showing the existence of a exceptional point where the spectrum is degenerate and the existence of a geometrical phase as the eigenvalues are brought adiabatically around the point. We discuss these results using a thermodynamic analogy.



To join via Zoom:

https://zoom.us/j/93165098030 <https://zoom.us/j/93165098030>

Meeting ID: 931 6509 8030

Passcode: 583101