Reducing residual-mass effects for domain-wall fermions | Zendy

Karl Jansen | Zendy; Kei-ichi Nagai | Zendy

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Reducing residual-mass effects for domain-wall fermions

Author(s) -

Karl Jansen,

Kei-ichi Nagai

Publication year - 2003

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2003/12/038

Subject(s) - residual , fermion , domain (mathematical analysis) , domain wall (magnetism) , environmental science , computer science , physics , mathematics , particle physics , algorithm , quantum mechanics , mathematical analysis , magnetization , magnetic field

It has been suggested to project out a number of low-lying eigenvalues of thefour-dimensional Wilson--Dirac operator that generates the transfer matrix ofdomain-wall fermions in order to improve simulations with domain-wall fermions.We investigate how this projection method reduces the residual chiralsymmetry-breaking effects for a finite extent of the extra dimension. We usethe standard Wilson as well as the renormalization--group--improved gaugeaction. In both cases we find a substantially reduced residual mass when theprojection method is employed. In addition, the large fluctuations in thisquantity disappear.Comment: 18 pages, 10 figures, references updated, comments adde

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