Cauchy slice holography gives a duality between the wavefunction
on a Cauchy slice and the partition function of a T2 deformed
field theory. I will review this correspondence and discuss
its implications for the black hole information puzzle.
The...
On August 17, 2017, LIGO/Virgo detected the first
gravitational waves from merging neutron stars. This event, known
as GW170817 was accompanied by observations all over the
electromagnetic spectrum. The peculiar gamma-ray burst that
followed the...
AGN feedback is now widely considered to be one of the main
drivers in regulating the growth of massive galaxies. In my talk I
will describe several efforts in our group to understand the power,
reach and impact of AGN feedback processes. We find...
Symmetries of Quantum Field Theories (QFTs), whose fusion does
not satisfy a group multiplication law, are generally referred to
as non-invertible. I will discuss their connection to generalized
gauging and higher fusion categories, providing by...
Motivated by holographic duality and the Ryu-Takyanagi formula,
we ask the question, “What quantum problem are Einstein’s equations
solving?” Answering this question amounts to dissecting or
“deconstructing” AdS/CFT to identify the quantum...
Current observations in black-hole astronomy could offer new
pathways to constrain deviations from General Relativity. This
includes tests of black-hole uniqueness, black-hole stability, and
corrections at strong curvature.
We recently detected an isolated stellar-mass black hole (BH)
unambiguously for the first time, and measured its mass, distance
and velocity. We used HST to carry out precise astrometry of the
source star of the long-duration, high-magnification...
In this talk I will discuss about Amplituhedra – generalizations
of polytopes inside the Grassmannian – introduced by physicists as
one of the new geometric constructions encoding physical
observables in Quantum Field Theories. In particular, I will...
Super star clusters with masses > 1e6 Msun are thought to be
progenitors of globular clusters (GCs). Their births however are
seldomly seen in the local Universe. Given radiation and kinetic
feedbacks that regulate star formation, contribution to...
