Speaker
Takahiro Doi
(Quantum Hadron Physics Laboratory Theoretical Research Division, Nishina Center, RIKEN)
Description
The numerical simulation for the lattice QCD at finite density is difficult to perform due to the sign problem. The Lefschetz thimble method is expected to give us a possible solution of the sign problem. However, this method has the global sign problem, which is cancellation between thimbles, and this problem has not been solved yet. We develop a new method to avoid the global sign problem by modifying the Lefschetz thimble method. In this talk, I introduce our method and show that it works well in toy models.
Primary author
Takahiro Doi
(Quantum Hadron Physics Laboratory Theoretical Research Division, Nishina Center, RIKEN)
Co-author
Dr
Shoichiro Tsutsui
(KEK theory center)
