I will revisit the
quantum field theory of the Coulomb gas formalism, clarifying
several important points along the way. The first key ingredient
involves a peculiarity of the timelike linear dilaton: although the
background charge Q breaks the...
We will discuss a geometric re-interpretation of N=1 SQCD
with special unitary gauge groups. We will argue that the 4d
SU(M) SQCD in the middle of the conformal window can be
engineered by compactifying certain 6d SCFTs on three punctured
spheres. ...
A symmetry is usually described by transformations and an
associated group. However, a symmetry can also be described by
the conservation of charges, encoded by their fusion rule. This
leads to a description of symmetry based on fusion category...
We will discuss the geometry behind the horizon of various
asymptotically AdS black holes when the boundary CFT is deformed by
a scalar operator. The dynamics of classical GR in the region
inside the black hole turns out to be rather intricate, with...
We consider the universality of existence and saturation of
asymptotic bounds in various quantities in 2D CFT. In particular,
we focus on previously derived upper and lower bounds on the number
of operators in a window of scaling dimensions [Δ−δ,Δ+δ...
A fascinating feature of some gapped systems is topological
order, where the system flows to a nontrivial TQFT in the infrared.
The gap is often essential to the description of these phases, so
it is interesting to ask what happens to them when the...
Spacetime wormholes have played an important role in
recent progress in black hole physics. However, in the context of
AdS/CFT, these wormholes lead to a basic puzzle: the "factorization
problem", introduced by Maldacena and Maoz. In this talk we...
We show that a naïve application of the quantum extremal surface
(QES) prescription can lead to paradoxical results and must be
corrected at leading order. The corrections arise when there is a
second QES (with strictly larger generalized entropy at...
