arXiv subjects

The JLQCD Collaboration

Publications and source records attributed to The JLQCD Collaboration.

2 recordsLinked to original sources

arXiv2013

Large-scale simulations with chiral symmetry

We carry out a comparative study among five-dimensional formulations of chirally symmetric fermions about the algorithmic performance, chiral symmetry violation and topological tunneling to find a computationally inexpensive formulation with good chiral symmetry. With our choice of the lattice action, we have launched large-scale simulations on fine lattices aiming at a precision study of light and heavy quark physics. We report on the comparative study, current status of the large-scale simulations, and preliminary results on the residual quark mass and auto-correlation.

hep-lat↗

arXiv2011

Lattice study of 4d {\cal N}=1 super Yang-Mills theory with dynamical overlap gluino

We report on a lattice simulation result for four-dimensional {\cal N}=1 SU(2) super Yang-Mills theory with the dynamical overlap gluino. We study the spectrum of the overlap Dirac operator at three different gluino masses m=0.2, 0.1 and 0.05 with the Iwasaki action on a 8^3 \times 16 lattice. We find that the lowest eigenvalue distributions are in good agreement with the prediction from the random matrix theory. Moreover the mass dependence of the condensate is almost constant, which gives a clean chiral limit. Our results for the gluino condensate in the chiral limit is < \barψ ψ> r_0^3 = 0.63(12), where r_0 is the Sommer scale.

hep-lat↗