Events and Activities

Abstract: We present a unified geometric perspective on the symmetries underlying the spin 0, 1, and 2 static perturbations around a Schwarzschild black hole. The symmetries are exact, each forming an SO(3,1) group. They can be formulated at the...

Abstract: We introduce stratified symmetry operators and stratified anomalies, which generalize onsite symmetry operators and onsite projective representations in quantum lattice systems. A stratified symmetry operator is a symmetry operator that...

Abstract: Features of the black hole interior can be extracted from the analytic structure of boundary correlation functions. Working in the geodesic approximation, we find analytic continuations that probe the interior of rotating and charged black...

Abstract: We often say two gapped lattice Hamiltonians are in the same topological phase if they are connected by a path of gapped Hamiltonians. For 2D spin systems, it is conjectured that each phase is uniquely specified by the modular tensor...

Abstract: TBA