5 papers
Critical quench dynamics of Wegner's gauge model: a geometric perspective
Ramgopal Agrawal, Leticia F. Cugliandolo, Marco Picco
Wegner's gauge model is the earliest formulation of pure lattice gauge theory and predicts the topological nature of the confinement-deconfinement transition. In thr…
Lack of self-averaging of the critical internal energy in a weakly-disordered Baxter model
Ramgopal Agrawal, Victor Dotsenko, Maxym Dudka +3
We investigate the first two moments of the critical internal energy in a weakly disordered two-dimensional Baxter eight-vertex model as a function of the system size , eval…
Nonconvex optimization methods for ground states in disordered continuous-spin models
Ramgopal Agrawal, Lorenzo Ciarpaglini, Pierluigi Mansueto +4
This work explores the global optimization problem of finding lowest-energy configurations in disordered continuous-spin models from statistical physics, with a particular focus on…
The geometric phase transition of the three-dimensional lattice gauge model
Ramgopal Agrawal, Leticia F. Cugliandolo, Lara Faoro +2
After fifty years of lattice gauge theories (LGTs), the nature of the transition between their topological phases (confinement/deconfinement) remains challenging due to the absence…
Domain Growth in Long-range Ising Models with Disorder
Ramgopal Agrawal, Federico Corberi, Eugenio Lippiello +1
Recent advances have highlighted the rich low-temperature kinetics of the long-range Ising model (LRIM). This study investigates domain growth in an LRIM with quenched disorder, fo…