3 papers
hep-lat2016
Applying recursive numerical integration techniques for solving high dimensional integrals
Andreas Ammon, Alan Genz, Tobias Hartung +3
The error scaling for Markov-Chain Monte Carlo techniques (MCMC) with samples behaves like . This scaling makes it often very time intensive to reduce the error of…
hep-lat2016
New polynomially exact integration rules on U(N) and SU(N)
Andreas Ammon, Tobias Hartung, Karl Jansen +2
In lattice Quantum Field Theory, we are often presented with integrals over polynomials of coefficients of matrices in U(N) or SU(N) with respect to the Haar measure. In some physi…
hep-lat2016
Overcoming the sign problem in 1-dimensional QCD by new integration rules with polynomial exactness
A. Ammon, T. Hartung, K. Jansen +2
In this paper we describe a new integration method for the groups and , for which we verified numerically that it is polynomially exact for . The method is ap…