Monodromy defects from hyperbolic space

Time: 10:00am, Sep. 8 (Wedn.). 2021

Location (onsite): 4th Floor Meeting Room, KITS Building [View Map

Speaker: Ziming Ji (Princeton University) 

Abstract:Conformal defects are extended objects in a conformal field theory, which preserve a subgroup of the original conformal symmetry. A monodromy defect is a codimension two defect defined by the monodromy of fields in the bulk. I will first talk about generalities of conformal defects and monodromy defects. Then I will discuss monodromy defects in O(N) scalar field theories in d dimension. Using a map to the hyperbolic space, we can study the free energy, discuss defect RG flow, and obtain the defect CFT data. Large N analysis is compared to an epsilon expansion. A conjecture about the monotonicity of free energy during the defect RG flow is checked. We also obtain various one-point, two-point, and four-point functions.

Our paper:
Defect CFT:
Line defect in 3D:

Invited by Prof. Xi-Nan Zhou


Sep 08 2021


China Standard Time
10:00 am - 11:00 am

Local Time

  • Timezone: America/New_York
  • Date: Sep 07 2021
  • Time: 10:00 pm - 11:00 pm

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(Kavli ITS) The Kavli Institute for Theoretical Sciences at the University of Chinese Academy of Sciences


(Kavli ITS) Kavli Institute for Theoretical Sciences | University of Chinese Academy of Sciences (UCAS)
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