PIRSA:16020087

Causality Constraints in Conformal Field Theory

APA

(2016). Causality Constraints in Conformal Field Theory. Perimeter Institute. https://pirsa.org/16020087

MLA

Causality Constraints in Conformal Field Theory. Perimeter Institute, Feb. 09, 2016, https://pirsa.org/16020087

BibTex

          @misc{ pirsa_PIRSA:16020087,
            doi = {10.48660/16020087},
            url = {https://pirsa.org/16020087},
            author = {},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Causality Constraints in Conformal Field Theory},
            publisher = {Perimeter Institute},
            year = {2016},
            month = {feb},
            note = {PIRSA:16020087 see, \url{https://pirsa.org}}
          }
          

Abstract

In effective field theory, causality fixes the signs of certain interactions.  I will describe how these Lorentzian constraints are encoded in the Euclidean theory, and use the conformal bootstrap to derive analogous causality constraints in CFT. Applied to spinning fields, these constraints include (some of) the Hofman-Maldacena bounds derived from conformal collider physics. I will also discuss applications to holographic theories.