Selected research
Selected research topics and representative publications in quantum field theory, conformal field theory, generalized symmetries, and related questions in holography.
Full publication record on INSPIRELarge global charge makes otherwise inaccessible observables tractable. Combining effective field theory, conformal data, and sometimes unexpected correspondences between dimensions gives a way to compute—and constrain—quantities in interacting conformal field theories.
Generalized symmetries are naturally described by extended topological operators. My work considers continuous non-invertible symmetries and non-local conserved currents, the fate of non-invertible structures in string theory and gravity, and applications to quantum information.
What traces of spontaneously broken conformal symmetry are visible in the spectrum of the unbroken CFT? Theories with moduli spaces connect the operator spectrum, the physics of their vacua, and new bootstrap consistency conditions. Large-charge methods offer a particularly useful bridge between these descriptions.
We usually associate higher temperatures with disorder. Yet some conformal field theories support broken continuous symmetries at every nonzero temperature. These examples sharpen the relationship between entropy, order, and the possible phases of quantum fields.