Speaker
Gabor Balassa
Description
Interacting quantum field theories at finite densities pose significant numerical and conceptual challenges, even with modern computational capabilities. In this talk, I propose a new method, based on an expansion of Euclidean path integrals using radial basis function neural networks, which allows the calculation of observables at finite densities and overcomes the sign problem in a numerically very efficient manner. The method is applied to the interacting complex scalar field theory at finite chemical potentials in 3+1 dimensions, which exhibits both the sign problem and the silver blaze phenomenon.
Author
Gabor Balassa
