Abstract: Holographic duality posits that
quantum gravity under the assumption of certain boundary conditions
is described by strongly interacting quantum matter. In the context
of a theory-experiment consortium (Lausanne-Geneva-Trento-Zürich),
we...
Abstract: In this talk, I will present a
Hamiltonian approach to show decay for massless Vlasov fields on
the exterior of black hole backgrounds. Vlasov fields are
transported along the geodesic flow, and so, the existence of
trapped geodesics is an...
Abstract: Fusion 2-categories offer a higher
dimensional generalization of the category of symmetries in (1+1)d.
I will explain how to leverage fusion 2-categories in a special
case and apply them to understand the categorical structure of
(3+1)d...
Abstract: I will focus on fermionic fusion
2-categories, with an emphasis on the supercohomology theory that
is needed to describe them. Then I will explain as much as possible
about how they are used to classify 3+1d fermionic topological
orders.
Abstract: This will be a mini-talk to explain
the following. In a Euclidean path integral on a manifold X with
many boundaries, which boundaries are associated with bras and
which with kets? In a theory with no time-reversal symmetry, the
answer...
Abstract: Understanding quantum gravity in
a closed universe is a long standing problem, where it is
challenging even to discuss what observables are meaningful,
particularly when thinking about dynamics. Indeed, most discussions
in de Sitter are in...
Abstract: The overall goal of this series of
talks is to introduce a categorical framework where fusion
2-categories can be used to understand topological theories in
3+1d. in this first talk I will give an introduction to fusion
2-categories in the...
Abstract: With the advent of next-generation
multi-messenger observatories, multi-messenger events will offer
unprecedented opportunities to address profound questions in black
hole physics, heavy element nucleosynthesis, jet dynamics,
cosmic...
Abstract: Recent advancements in
generalized symmetries have drawn significant attention to gapped
phases of matter exhibiting novel symmetries, such as noninvertible
symmetries. By leveraging the duality transformations, the
classification and...
