Line and surface defects for the free scalar field

Journal of High Energy Physics

Xiang Zhao¹  Edoardo Lauria¹  Balt C. van Rees¹  Pedro Liendo² 

[1] CPHT, CNRS, Institut Polytechnique de Paris, Paris, France;DESY Hamburg, Theory Group, Notkestraße 85, D-22607, Hamburg, Germany;

关键词: Conformal Field Theory;    Space-Time Symmetries;    Wilson, ’t Hooft and Polyakov loops;    Boundary Quantum Field Theory;   

DOI  :  10.1007/JHEP01(2021)060

来源: Springer

【 摘 要 】

For a single free scalar field in d ≥ 2 dimensions, almost all the unitary conformal defects must be ‘trivial’ in the sense that they cannot hold interesting dynamics. The only possible exceptions are monodromy defects in d ≥ 4 and co-dimension three defects in d ≥ 5. As an intermediate result we show that the n-point correlation functions of a conformal theory with a generalized free spectrum must be those of the generalized free theory.

【 授权许可】

CC BY