2014/03/31 by Yu-Chih Chen, Yu‐Chih Chen, Ting-Wai Chiu · 31 citations
Mathematics · Physics and Astronomy · #Action (physics) #Applied mathematics #Dirac operator #Domain (mathematical analysis) #Effective action #Fermion #High-Energy Particle Collisions Research #Hybrid Monte Carlo #Kernel (algebra) #Markov chain Monte Carlo #Mathematical analysis #Mathematical physics #Mathematics #Monte Carlo method #Operator (biology) #Particle physics #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Statistical physics #hep-lat #hep-ph
paper · pdf · doi:10.1016/j.physletb.2014.09.016
published in Physics Letters B 738, 55-60 (Elsevier BV) · 13 pages, 4 figures, v2: Simulation of (1+1)-flavors QCD with DWF, and references added. To appear in Phys. Lett. B
arxiv created 2014/09/08 · openalex publication_date 2014/09/16 · arxiv updated 2014/09/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.