The cuprate pseudogap phase displays Fermi arc spectral weight
in
photoemission, while recent magnetotransport observations
present
compelling evidence for hole pockets. We model this by a
Fractionalized Fermi liquid (FL*), which was predicted to
have...
I will explore one of the most profound open question in
particle physics, focusing on some exciting directions of my
ongoing research activity: the strong CP problem. I will begin with
an overview of the strong CP problem, highlighting proposed...
The evolution of planets and planetary systems depends on the
environments created by their host stars in a number of ways.
In this talk, I will discuss several observable impacts of stellar
winds, radiation pressure, and non-thermal ionizing...
In large N theories with a gravity dual, generic heavy operators
should be dual to black holes in the bulk. The microscopic details
of such operators should then be irrelevant in the low energy
theory. We look for such universality in the strong...
Massive black holes (MBHs) exist at the centers of many dense
star systems, particularly in galactic nuclei. Steady
accretion onto MBHs powers active galactic nuclei, but dynamical
processes near MBHs can generate various forms of transient...
I will present a program of extracting cosmological information
by combining effective field theory (EFT) techniques with data from
spectroscopic galaxy surveys. I will highlight previous successes
of this program and share recent results, including...
I will discuss the path integral of pure 3D gravity on a finite
region of spacetime, with boundary conditions that fix dihedral
angles or geodesic lengths. This amplitude calculates corrections
to the Gaussian statistics of OPE coefficients in the...
I will explain how the irreversibility of the renormalization
group together with anomalies, including anomalies in the space of
coupling constants, can be used to constrain the IR phases of
defects in familiar quantum field theories. As an example...
In the era of high-dimensional data and simulation-based
science, machine learning is transforming the different stages of
the scientific method in astrophysics. I will present a summary of
my research connected to generative models in two main...
Recent breakthroughs in gravitational wave and electromagnetic
observations have given better and better insights into black holes
and extreme gravity. While one usually thinks of black holes as the
unyielding final state of gravitational collapse...
