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Generalized Directed Loop Method for Quantum Monte Carlo Simulations
Fabien Alet, Stefan Wessel, Matthias Troyer
Efficient quantum Monte Carlo update schemes called directed loops have recently been proposed, which improve the efficiency of simulations of quantum lattice models. We propose to…
Non-local updates for quantum Monte Carlo simulations
M. Troyer, F. Alet, S. Trebst +1
We review the development of update schemes for quantum lattice models simulated using world line quantum Monte Carlo algorithms. Starting from the Suzuki-Trotter mapping we discus…
Performance Limitations of Flat Histogram Methods and Optimality of Wang-Landau Sampling
P. Dayal, S. Trebst, S. Wessel +4
We determine the optimal scaling of local-update flat-histogram methods with system size by using a perfect flat-histogram scheme based on the exact density of states of 2D Ising m…
On the Melting of Bosonic Stripes
Guido Schmid, Matthias Troyer
We use quantum Monte Carlo simulations to determine the finite temperature phase diagram and to investigate the thermal and quantum melting of stripe phases in a two-dimensional ha…