title: Path-integral Monte Carlo simulations without the sign problem: multilevel blocking approach for effective actions
abstract: The multilevel blocking algorithm recently proposed as a possible solution to the sign problem in path-integral Monte Carlo simulations has been extended to systems with long-ranged interactions along the Trotter direction. As an application, results for the real-time quantum dynamics of the spin-boson model are presented.
authors.affiliation: Fakultat fur Physik, Albert-Ludwigs-Universitat, Freiburg, Germany.
authors.initials: R
authors.lastname: Egger
authors.initials: L
authors.lastname: Muhlbacher
authors.initials: CH
authors.lastname: Mak