• CMSA Math-Science Literature Lecture: Nonlinear stability of Kerr black holes for small angular momentum

    Virtual

    Sergiu Klainerman (Princeton University) Title: Nonlinear stability of Kerr black holes for small angular momentum Abstract: According to a well-known conjecture,  initial data sets,  for the Einstein vacuum equations, sufficiently close to a Kerr solution with parameters $a, m$, $|a|/m <1$, have maximal developments with complete future null infinity and with domain of outer communication (i.e complement of […]

  • Hybrid Fracton Orders

    Virtual

    Nathanan Tantivasadakarn (Harvard) Video Title: Hybrid Fracton Orders Abstract: I will introduce a family of gapped quantum phases that exhibit the phenomenology of both conventional three-dimensional topological orders and fracton orders called “Hybrid Fracton Orders”.  First, I will present the simplest example of such an order: the “Hybrid X-cube” model, where excitations can be labeled identically to […]