TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.19.6.164
TI  - Boundary criticality of complex conformal field theory: A case study in the non-Hermitian 5-state Potts model
PY  - 2025/12/24
UR  - https://www.scipost.org/SciPostPhys.19.6.164
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 19
IS  - 6
SP  - 164
A1  - Tang, Yin
AU  - Liu, Qianyu
AU  - Tang, Qicheng
AU  - Zhu, Wei
AB  - Conformal fields with boundaries give rise to rich critical phenomena that can reveal information about the underlying conformality. While most existing studies focus on Hermitian systems, here we explore boundary critical phenomena in a non-Hermitian quantum 5-state Potts model which exhibits complex conformality in the bulk. We identify free, fixed and mixed conformal boundary conditions and observe the conformal tower structure of energy spectra, supporting the emergence of conformal boundary criticality. We also studied the duality relation between different conformal boundary conditions under the Kramers-Wannier transformation. These findings should facilitate a comprehensive understanding for complex CFTs and stimulate further exploration on the boundary critical phenomena within non-Hermitian strongly-correlated systems.
ER  -

@Article{10.21468/SciPostPhys.19.6.164,
	title={{Boundary criticality of complex conformal field theory: A case study in the non-Hermitian 5-state Potts model}},
	author={Yin Tang and Qianyu Liu and Qicheng Tang and Wei Zhu},
	journal={SciPost Phys.},
	volume={19},
	pages={164},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.19.6.164},
	url={https://scipost.org/10.21468/SciPostPhys.19.6.164},
}