Conveners
Session 11
- Hirotsugu Fujii (U Tokyo)
Prof.
Francesco Di Renzo
(University of Parma & INFN)
26/06/2019, 14:45
Oral talk
Lefschetz thimbles regularisation of (lattice) field theories was put forward as a possible solution to the sign problem. Despite elegant and conceptually simple, it has many subtleties. Two major ones have to do with most relevant issues: how can one efficiently implement importance sampling on thimbles? how many thimbles should we take into account? As for the first question, since a few...
Prof.
Andrei Alexandru
(The George Washington University)
26/06/2019, 15:10
Oral talk
Questions about quantum field theories at non-zero chemical potential and/or real-time correlators are often impossible to investigate numerically due to the sign problem. A possible solution to this problem is to deform the integration domain for the path integral in the complex plane. Sampling configurations on these manifolds is challenging. In this talk I will discuss some of these...
Mr
Yuto Mori
(Kyoto University)
26/06/2019, 15:35
Oral talk
The sign problem, is a serious obstacle to perform the Monte Carlo simulations of QCD with finite chemical potential, is caused by the oscillation of the Boltzmann factor. To avoid this problem, we have proposed the path optimization method. In this method, we optimize the integral path in complex plain to decrease the cancellation in integral. In this talk, we explain the application of this...
