Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2006-09-04
PoSLAT2006:040,2006
Physics
High Energy Physics
High Energy Physics - Lattice
7 pages, 5 figures, talk presented at Lattice2006(Algorithms, machines and networks), one ref. added
Scientific paper
We present simulation results for the 2-flavour Schwinger model with dynamical Ginsparg-Wilson fermions. Our Dirac operator is constructed by inserting an approximately chiral hypercube operator into the overlap formula, which yields the overlap hypercube operator. Due to the similarity with the hypercubic kernel, a low polynomial of this kernel can be used as a numerically cheap way to evaluate the fermionic part of the Hybrid Monte Carlo force. We verify algorithmic requirements like area conservation and reversibility, and we discuss the viability of this approach in view of the acceptance rate. Next we confirm a high level of locality for this formulation. Finally we evaluate the chiral condensate at light fermion masses, based on the density of low lying Dirac eigenvalues in different topological sectors. The results represent one of the first measurements with dynamical overlap fermions, and they agree very well with analytic predictions at weak coupling.
Bietenholz Wolfgang
Shcheredin Stanislav
Volkholz Jan
No associations
LandOfFree
Dynamical overlap fermion simulations with a preconditioned Hybrid Monte Carlo force does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamical overlap fermion simulations with a preconditioned Hybrid Monte Carlo force, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical overlap fermion simulations with a preconditioned Hybrid Monte Carlo force will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-727039