Noncommutative Geometry Seminar

The AdS3/CFT2 correspondence is special because
a broad class of solutions which are asymptotically AdS3 can
be obtained as quotients of PSL(2, R) by discrete subgroups of
its isometry group. Additionally, CFTs in 1+1 dimensions are
special because the conformal group is infinite leading to highly
constrained physics. The Ryu-Takayanagi conjecture provides a
powerful tool for translating questions about entanglement in
CFTs to computations involving extremal surfaces in the
corresponding AdS dual. Using this framework, questions about
the distribution of entanglement in a CFT2 are translated to
computations in a corresponding moduli space, with phase
transitions corresponding to points of enhanced symmetry.