[math-ias] Announcement: IAS Special HET Seminar - Tuesday, October 3 - 4:00 PM - Bloomberg Lecture Hall - "Kaluza-Klein Spectroscopy from Exceptional Field Theory" - Oscar Varela, Utah State University

[lisa]

*Tuesday, October 3, 2023 - IAS Special High Energy Theory Seminar **_
_*
"Kaluza-Klein Spectroscopy from Exceptional Field Theory"

Location: Bloomberg Lecture Hall (IAS)

Time: 4:00 PM

Speakers: Oscar Varela, Utah State University and IFT-Madrid

*Abstract: *The spectrum of single-trace operators of order-one 
dimension, of holographic CFTs at strong coupling and large N, can be 
mapped to the spectrum of Kaluza-Klein (KK) excitations over the dual 
AdS supergravity solutions. Computing these KK spectra is usually a 
difficult task even for the simplest AdS solutions. In this talk, I will 
review new spectral methods based on Exceptional Field Theory, a 
duality-covariant reformulation of the higher-dimensional 
supergravities. For certain AdS/CFT dual pairs, these methods bypass the 
difficulties and reduce the KK spectral problem to simple 
diagonalisation of suitable mass matrices. I will illustrate these 
methods for the class of AdS4 solutions of M-theory and type II string 
theory that uplift consistently from D=4 maximal gauged supergravities. 
Also, I will describe progress to extend these methods to AdS solutions 
that uplift from half-maximal supergravities.

--------------------- Lisa Fleischer Academic Assistant School of 
Natural Sciences Institute for Advanced Study 1 Einstein Drive 
Princeton, NJ 08540 lisa at ias.edu





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