23,668 research outputs found
A note on the solutions of the Ginsparg-Wilson relation
The role of R in the solutions of the Ginsparg-Wilson relation is discussed.Comment: LaTeX, 12 pages, 4 figures, Equation (11) has been symmetrized to
satisfy the hermiticity conditio
A construction of chiral fermion action
According to the necessary requirements for a chirally symmetric Dirac
operator, we present a systematic construction of such operators. We formulate
a criterion for the hermitian operator which enters the construction such that
the doubled modes are decoupled even at finite lattice spacing.Comment: 6 page
A note on a stochastic location problem
In this note we give a short and easy proof of the equivalence of Hakimi's one-median problem and the k-server-facility-loss median problem as discussed by Chiu and Larson in Computer and Operation Research. The proof makes only use of a stochastic monotonicity result for birth and death processes and the insensitivity of the M/G/k/k loss model.Hakimi median;stochastic location;stochastic monotonicity
A computational system for lattice QCD with overlap Dirac quarks
We outline the essential features of a Linux PC cluster which is now being
developed at National Taiwan University, and discuss how to optimize its
hardware and software for lattice QCD with overlap Dirac quarks. At present,
the cluster constitutes of 30 nodes, with each node consisting of one Pentium 4
processor (1.6/2.0 GHz), one Gbyte of PC800 RDRAM, one 40/80 Gbyte hard disk,
and a network card. The speed of this system is estimated to be 30 Gflops, and
its price/performance ratio is better than $1.0/Mflops for 64-bit (double
precision) computations in quenched lattice QCD with overlap Dirac quarks.Comment: 3 pages, Lattice 2002(machine
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