Abstract: A black hole, when observed from
outside, can be represented as a quantum system of microstates. For
AdS black holes, the microstates are dual to operators in the
boundary CFT by the AdS/CFT correspondence. In this talk, I will
discuss the...
Abstract: The irreversibility of RG flows
on conformal defects has been a subject of great interest recently.
In this talk I will present an entropy function defined on 2D
spherical defects, interpolating between the defect anomaly
coefficient at...
Abstract: For certain black hole
spacetimes, we are fortunate to have three complementary views of
the same physics: (1) the low-energy gravity theory on the
spacetime M, (2) worldsheet string theory with target space M, and
(3) a holographic...
Abstract: The towers of massive states in
quantum gravity are ubiquitous and highly constrained. I will
review some of the Swampland conjectures, known as distance
conjectures, that quantify the universal behaviors of such towers
in string theory...
Abstract: Recently, the notion of symmetry
has been generalized by relaxing the codimensions, invertibility
and topologicalness of the symmetry operators. In this talk, I will
introduce a new generalization, subsystem non-invertible symmetry,
by...
Abstract: The quantum extremal surface
(QES) formula is an important tool for computing entropy in
gravity. For a while, the lore was that this formula offers a good
approximation whenever the state is sufficiently semiclassical,
i.e. well-described...
