Simulating lattice field theories on multiple thimbles

Understand

Simulating thimble regularization of lattice field theory can be tricky when more than one thimble is to be taken into account.

• A couple of years ago we proposed a solution for this problem.
• More recently this solution proved to be effective in the case of 0+1 dimensional QCD.
• A few lessons we can learnt, including the role of symmetries and general hints on algorithmic solutions.