Speaker
Dr
Francesco Di Renzo
(University of Parma and INFN)
Description
In the context of thimble regularization of lattice field theories we are developing a new simulation algorithm. The main difficulty is to devise a sampling of configurations on a non-trivial manifold, which is defined as the hypersurface formed by the union of all paths of steepest descent of the complex action ending in a given saddle point. The main point with the new algorithm is the one-to-one correspondence of configurations and action values on a given steepest descent curve, which can in turn be seen as a steepest ascent if one changes the sign of the "time" variable.
We discuss the possible extensions of the algorithm to more general field theories. In the context of Lattice QCD the possible main advantage could be a mitigation of the problems connected to different topological sectors.
Primary authors
Dr
Eruzzi Giovanni
(University of Parma and INFN)
Dr
Francesco Di Renzo
(University of Parma and INFN)
Co-author
Dr
Michele Brambilla
(Università di Parma and INFN)
