Alternative to domain wall fermions Article

Narayanan, R, Neuberger, H. (2000). Alternative to domain wall fermions . PHYSICAL REVIEW D, 62(7), 1-14. 10.1103/PhysRevD.62.074504

cited authors

  • Narayanan, R; Neuberger, H

authors

abstract

  • We define a sparse Hermitian lattice Dirac matrix H coupling 2n+1 Dirac fermions. When 2n fermions are integrated out the induced action for the last fermion is a rational approximation to the Hermitian overlap Dirac operator. We provide rigorous bounds on the condition number of H and compare them to bounds for the higher dimensional Dirac operator of domain wall fermions. Our main conclusion is that overlap fermions should be taken seriously as a practical alternative to domain wall fermions in the context of numerical QCD. ©2000 The American Physical Society.

publication date

  • October 1, 2000

published in

Digital Object Identifier (DOI)

start page

  • 1

end page

  • 14

volume

  • 62

issue

  • 7