Thimble regularisation of Lattice Gauge Theories

The final goal of the project is to make progress towards the knowledge of the QCD phase diagram. Lattice investigation of the latter are hampered by the so-called sign problem: we do not have a positive definite measure to start with and thus Monte Carlo simulations seem to be ruled out. The idea behind the proposed method is to redefine the functional integral on different manifolds, i.e. the thimbles, on which the sign problem is drastically reduced.

  • Supervisor: Francesco Di Renzo (University of Parma)