16 citations · 54 across the 10 of their papers we have counts for
3 papers · 1 filter
Extracting Physics from Topologically Frozen Markov Chains
Urs Gerber, Irais Bautista, Wolfgang Bietenholz +2
In Monte Carlo simulations with a local update algorithm, the auto-correlation with respect to the topological charge tends to become very long. In the extreme case one can only pe…
Scalar fields in a non-commutative space
Wolfgang Bietenholz, Frank Hofheinz, Héctor Mejía-Díaz +1
We discuss the lambda phi**4 model in 2- and 3-dimensional non-commutative spaces. The mapping onto a Hermitian matrix model enables its non-perturbative investigation by Monte Car…
Interpretation of topologically restricted measurements in lattice sigma-models
Irais Bautista, Wolfgang Bietenholz, Urs Gerber +3
We consider models with topological sectors, and difficulties with their Monte Carlo simulation. In particular we are concerned with the situation where a simulation has an extreme…