253 citations · 2.8k across the 50 of their papers we have counts for
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Simons Lectures on Categorical Symmetries
Davi Costa, Clay Córdova, Michele Del Zotto +10
Global Categorical Symmetries are a powerful new tool for analyzing quantum field theories. This volume compiles lecture notes from the 2022 and 2023 summer schools on Global Categ…
Invertible phases of matter with spatial symmetry
Daniel S. Freed, Michael J. Hopkins
We propose a general formula for the group of invertible topological phases on a space , possibly equipped with the action of a group . Our formula applies to arbitrary symme…
On Wigner's theorem
Daniel S. Freed
Wigner's theorem asserts that any symmetry of a quantum system is unitary or antiunitary. In this short note we give two proofs based on the geometry of the Fubini-Study metric.
K-Theory in Quantum Field Theory
Daniel S. Freed
We survey three different ways in which K-theory in all its forms enters quantum field theory. In Part 1 we give a general argument which relates topological field theory in codime…