Simulation of theories with a topological term

26 Jun 2017, 12:35
25m
talk

Speaker

Eduardo Follana (Universidad de Zaragoza)

Description

We discuss two methods for simulating systems with a "theta-like" term in the action, and that therefore suffer from a severe sign problem. Both methods are based on simulations at imaginary values of the "theta-like" parameter, where the sign problem is absent. We show the results of implementing the methods in a variety of physical systems, and we analyze their applicability and shortcomings. We also present preliminary results on the Schwinger model with a theta term, and we discuss the prospects for simulating QCD with a non-zero theta angle.

Primary author

Eduardo Follana (Universidad de Zaragoza)

Co-authors

Mr Alejandro Vaquero (Universidad de Zaragoza) Mr Eduardo Royo (Universidad de Zaragoza) Giuseppe Di Carlo (LNGS) Prof. Vicente Azcoiti (Universidad de Zaragoza)

Presentation Materials