ArXiv TLDR

Extraordinary Surface Criticalities for Interacting Fermions

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2604.15187

Oleksandr Diatlyk, Zimo Sun, Yifan Wang

hep-th

TLDR

This paper explores novel surface critical behavior in 3D Gross-Neveu-Yukawa models, revealing how fermionic anomalies shape surface dynamics.

Key contributions

  • Investigates novel surface critical behavior in 3D Gross-Neveu-Yukawa models.
  • Obtains exact infrared solutions for defect renormalization group flows.
  • Demonstrates how fermionic anomalies are encoded in surface dynamics.
  • Uncovers emergent topological and geometric structures in defect coupling space.

Why it matters

This research advances our understanding of surface critical phenomena in interacting fermion systems. It reveals new insights into how fermionic anomalies influence surface dynamics and uncovers novel topological structures. These findings contribute to the broader study of critical phenomena and defect CFTs.

Original Abstract

Interacting fermions exhibit a rich landscape of surface defects and associated critical phenomena. We investigate novel surface critical behavior in the three-dimensional Gross-Neveu-Yukawa model. For a class of defect renormalization group flows, we obtain exact infrared solutions and show how fermionic anomalies are encoded in the resulting surface dynamics. We further uncover emergent topological and geometric structures in the defect coupling space, and comment on their relation to a defect analogue of the CFT distance conjecture.

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