Instabilities of a generalized Gross-Neveu-Yukawa quantum criticality
Abstract
We study the instabilities to the conformal critical point of an exactly solvable family of Gross-Neveu models. Using conformal field theory techniques, we construct the zero-temperature phase diagram and identify the superconducting and charge neutral ordered phases that destabilize the critical point. Both instabilities appear only when the fermions are strongly renormalized, above a critical anomalous dimension. A higher fermion anomalous dimension also raises the critical degree of time-reversal-symmetry breaking required to suppress superconductivity, indicating that pairing becomes more robust with stronger renormalization.
Fields of Study & Subjects
Physics of Superconductivity and Magnetism
Organic and Molecular Conductors Research
Iron-based superconductors research
Publication details
- Journal / source
- Physical review. B./Physical review. B
- Publisher
- American Physical Society (APS)
- Volume
- 113
- Issue
- 4
- Publication date
- 13 January 2026
- Language
- EN