5 papers
Mass generation at a fixed point: A Functional Renormalization Group Study of the tricritical O() model in and
Shunsuke Yabunaka, Bertrand Delamotte
Renormalization group (RG) fixed points are commonly associated with scale invariance and a divergent correlation length. We show that this connection can fail in the tricritical $…
Supersymmetry Without Time-Reversal Invariance in Model A: A FRG perspective
Sankarshan Sahu, Bertrand Delamotte, Adam Rançon +1
We show that, contrary to common belief, supersymmetry alone is not sufficient in Model A dynamics to ensure relaxation toward a stationary state satisfying time-reversal invarianc…
scalar models: including corrections in the Functional Renormalization Group analysis
Carlos A. Sánchez-Villalobos, Bertrand Delamotte, Nicolás Wschebor
The study of phase transitions in frustrated magnetic systems with symmetry has been the subject of controversy for more than twenty years, with theoretical, nume…
Universal and non-universal large deviations in critical systems
Ivan Balog, Bertrand Delamotte, Adam Rançon
Rare events play a crucial role in understanding complex systems. Characterizing and analyzing them in scale-invariant situations is challenging due to strong correlations. In this…
Generalization of the Central Limit Theorem to Critical Systems: Revisiting Perturbation Theory
Sankarshan Sahu, Bertrand Delamotte, Adam Rançon
The Central Limit Theorem does not hold for strongly correlated stochastic variables, as is the case for statistical systems close to criticality. Recently, the calculation of the…