Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 77, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-017-4839-0
Keywords
-
Categories
Funding
- Leibniz Supercomputing Centre in Munich [pr92ci]
Ask authors/readers for more resources
The viability of a variant of numerical stochastic perturbation theory, where the Langevin equation is replaced by the SMD algorithm, is examined. In particular, the convergence of the process to a unique stationary state is rigorously established and the use of higher-order symplectic integration schemes is shown to be highly profitable in this context. For illustration, the gradient-flow coupling in finite volume with Schrodinger functional boundary conditions is computed to two-loop (i.e. NNL) order in the SU(3) gauge theory. The scaling behaviour of the algorithm turns out to be rather favourable in this case, which allows the computations to be driven close to the continuum limit.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available