2 papers
hep-th2024
Light-ray sum rules and the c-anomaly
Thomas Hartman, Grégoire Mathys
In a four-dimensional quantum field theory that flows between two fixed points under the renormalization group, the change in the conformal anomaly has been related to the ave…
hep-th2023
Null energy constraints on two-dimensional RG flows
Thomas Hartman, Grégoire Mathys
We study applications of spectral positivity and the averaged null energy condition (ANEC) to renormalization group (RG) flows in two-dimensional quantum field theory. We find a su…