Research Paper#Condensed Matter Physics, Graphene, Renormalization Group🔬 ResearchAnalyzed: Jan 3, 2026 18:57
Renormalization Group Analysis of Graphene Bilayers
Analysis
This paper applies a nonperturbative renormalization group (NPRG) approach to study thermal fluctuations in graphene bilayers. It builds upon previous work using a self-consistent screening approximation (SCSA) and offers advantages such as accounting for nonlinearities, treating the bilayer as an extension of the monolayer, and allowing for a systematically improvable hierarchy of approximations. The study focuses on the crossover of effective bending rigidity across different renormalization group scales.
Key Takeaways
Reference
“The NPRG approach allows one, in principle, to take into account all nonlinearities present in the elastic theory, in contrast to the SCSA treatment which requires, already at the formal level, significant simplifications.”