6 papers
Activated dynamics in the quantum random field Ising model
Ivan Balog, Lovro Å aravanja, Andrei A. Fedorenko
We study the critical dynamics of the quantum random-field Ising model using the nonperturbative functional renormalization group (NP-FRG). The static critical behavior is found to…
Constraint effective action and critical correlation functions at fixed magnetization
Félix Rose, Adam Rançon, Ivan Balog
We present an extension of the functional renormalization group (FRG) framework developed to compute critical probability distributions of the order parameter to momentum-dependent…
Dreaming up scale invariance via inverse renormalization group
Adam Rançon, Ulysse Rançon, Tomislav Ivek +1
We explore how minimal neural networks can invert the renormalization group (RG) coarse-graining procedure in the two-dimensional Ising model, effectively ``dreaming up'' microscop…
Constraint correlation functions of the one-dimensional Ising model in the scaling limit
Ivan Balog, Adam Rançon
We study the correlation function of the one-dimensional Ising model at fixed magnetization. Focusing on the scaling limit close to the zero-temperature fixed point, we show that t…
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…
Probability distributions of the order parameter of the model
Adam Rançon, Bertrand Delamotte, Lovro Šaravanja +1
We study the probability distribution function (PDF) of the order parameter of the three-dimensional model at criticality using the functional renormalisation group. For thi…