#
Archive of IAS Monday High Energy Theory Seminars

## IAS High Energy Theory Seminar / Quantum Information and Physics Seminar

## IAS High Energy Theory Seminar

**Abstract:** Quantum critical points usually
separate two distinct phases of matter. Here I will discuss a class
of "unnecessary" quantum critical points that lie within a single
phase of matter (much like the liquid-gas transition, except that
they...

## IAS High Energy Theory Seminar

**Abstract:** I will describe constructions of
lattice field theories that assign a single bosonic variable to
each site, rather a conjugate pair x,p. The information to realize
a non-trivial dynamics is realized by non-trivial Poisson brackets
between...

## IAS High Energy Theory Seminar

**Abstract:** I will describe the one-loop
partition function for strings propagating on AdS3 geometries with
NS-NS flux (for generic values of AdS radius in string units). The
essential ingredients that go into this analysis have been
known for a while...

## IAS High Energy Theory Seminar

**Abstract:** We will discuss excitations with
large spin and/or large particle number. For conformal theories
this corresponds to investigating particular trajectories of heavy
operators.

We find trajectories with large approximate degeneracy and show...

## IAS High Energy Theory Seminar

**Abstract:** Conformal Field Theory (CFT)
represents a class of quantum field theories that has profound
applications across various physics domains, from critical
phenomena in statistical mechanics to quantum matter, quantum
gravity, and string theory...

## IAS High Energy Theory Seminar (joint with the Workshop on Spacetime and Quantum Information)

## IAS High Energy Theory Seminar

**Abstract:** String stars, or Horowitz-Polchinski
solutions, are string theory saddles with normalizable condensates
of thermal-winding strings. In the past, string stars were offered
as a possible description of stringy (Euclidean) black holes
in...

## IAS High Energy Theory Seminar

**Abstract:** M- and F-theory compactifications
with ADE singularities give rise to non-abelian ADE gauge
symmetries. The physical explanation for this phenomenon involves
M2-branes wrapped on vanishing cycles. We consider an alternative
approach which...

## IAS High Energy Theory Seminar

**Abstract:** Instantons are an important source of
nonperturbative effects in quantum field theories, but their role
in asymptotically free theories has not been well understood. In
this talk, we will present a new approach to instanton analysis in
the...