In this talk, I will give an overview of the types of problems I
work on in string phenomenology, with a specific view to how to
relate Calabi-Yau geometry to axions in four dimensions. I'll
discuss the broad-stroke features we find of axions in...
In this talk, I will present a holographic expansion, known as
the giant graviton expansion, of the thermal partition function of
free N=4 super Yang-Mills. We use the twistorial uplift of
self-dual N=4 SYM, which can be engineered in the...
Homotopy theory and category theory have the capability to
provide many insights into the structure of quantum field
theory. Using these tools I will explain a comprehensive
framework for characterizing the infrared (IR) phases of a
fermionic QFTs...
I will discuss recent progress on a Grassmannian formulation of
correlation functions in the large-N O(N) vector model, motivated
by higher-spin holography. The formulation leads to a remarkably
simple n-point formula and suggests an underlying...
A key property of a global symmetry's anomaly is its order: the
smallest integer n for which the diagonal symmetry of the n-copy
system is anomaly-free. While many familiar lattice anomalies have
finite order, perturbative anomalies in the continuum...
Recently, the LZ experiment reported a single event consistent
with a nuclear recoil - a potential signature of dark matter. I’ll
discuss the experiment, the event, and what scenarios people are
discussing. I’ll mention some future scenarios that...
Over the last few years it has been understood that black holes
sufficiently close to extremality receive large quantum gravity
corrections from large fluctuations of the metric. These
corrections modify standard properties of near extremal
black...
I will discuss the bulk mechanism of the stringy exclusion
principle in the AdS3/CFT2 case. Consider the duality between
string theory on AdS3 × S3 × M4 and Sym^N(M4). At finite N, both
the chiral-chiral spectrum and the number of the polar terms...
For a quantum field of arbitrary mass and spin in the static
patch of de Sitter spacetime, the Euclidean partition function
receives contributions from edge modes localized on the horizon,
expressible in terms of the Harish-Chandra character of the...
I will discuss the quantum resource known as magic and its
analysis in many-fermion systems such as the Sachdev-Ye-Kitaev
model. I will show that the SYK calculation of magic can be
quantitatively modeled with a gravity calculation
involving...
