Anomalous quasiparticle lifetime in geometric quantum critical metals
Abstract
Metals can undergo geometric quantum phase transitions where the local curvature of the Fermi surface changes sign without a change in symmetry or topology. At the inflection points on the Fermi surface, the local curvature vanishes, leading to an anomalous dynamics of quasiparticles. In this paper, we study geometric quantum critical metals that support inflection points in two dimensions, and show that the decay rate of quasiparticles goes as $E^α$ with $1
Fields of Study & Subjects
Topological Materials and Phenomena
Quantum and electron transport phenomena
Physics of Superconductivity and Magnetism
Publication details
- Journal / source
- Physical review. B./Physical review. B
- Publisher
- American Physical Society (APS)
- Volume
- 113
- Issue
- 24
- Publication date
- 6 May 2026
- Language
- EN