Exact Pseudofermion Action for Monte Carlo Simulation of Domain-Wall Fermion - INSPIRE

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Exact Pseudofermion Action for Monte Carlo Simulation of Domain-Wall Fermion

TWQCD

Collaboration

•

Yu-Chih Chen
(
- Taiwan, Natl. Taiwan U.
)

Mar 7, 2014

6 pages

Published in:

Phys.Lett.B 738 (2014) 55-60

Published: Nov 10, 2014

e-Print:

1403.1683 [hep-lat]

DOI:

10.1016/j.physletb.2014.09.016

Report number:

NTUTH-14-505A

View in:

ADS Abstract Service

reference search44 citations

Citations per year

Abstract: (Elsevier)

We present an exact pseudofermion action for hybrid Monte Carlo simulation (HMC) of one-flavor domain-wall fermion (DWF), with the effective 4-dimensional Dirac operator equal to the optimal rational approximation of the overlap-Dirac operator with kernel H=cHw(1+dγ5Hw)−1 , where c and d are constants. Using this exact pseudofermion action, we perform HMC of one-flavor QCD, and compare its characteristics with the widely used rational hybrid Monte Carlo algorithm (RHMC). Moreover, to demonstrate the practicality of the exact one-flavor algorithm (EOFA), we perform the first dynamical simulation of the ( 1+1 )-flavors QCD with DWF.

Note:

13 pages, 4 figures, v2: Simulation of (1+1)-flavors QCD with DWF, and references added. To appear in Phys. Lett. B

Monte Carlo: hybrid
numerical calculations: Monte Carlo
fermion: domain wall
approximation: rational
quantum chromodynamics
lattice field theory
quark: flavor
numerical methods: efficiency

References(24)

Figures(9)

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TWQCD

Collaboration

•

Ting-Wai Chiu
(
- Taiwan, Natl. Taiwan U.
)

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