Theoretical Physics Seminar: Ling Lin

Title: Aspects of decomposition

Abstract: A d-dimensional quantum field theory with (d-1)-form symmetry is conjectured to “decompose” into individual quantum field theories. After a review of this phenomenon, I will discuss two instances where decomposition occurs in a subtle way: the fusion rules of condensation defects in 3d gauge theories, and in string / M-theory compactifications with frozen singularities.