出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We study the transfer matrix for domain wall fermions to understand the origin and significance
of oscillatory contributions to hadron correlation functions that arise for M >1. For a free particle
in one space, one time, and one flavor dimension, the eigenmodes of the one-body operator
appearing in the transfer matrix are calculated, and the role of the negative eigenmodes arising
when M > 1 is studied. In the case of three space dimensions, oscillatory behavior for hadron
correlation functions in QCD is shown to emerge for free fermions when M exceeds 1, and to
increase with increasing M. Analogous behavior is observed for domain wall fermions on HYP
smeared MILC lattices, and a procedure is demonstrated for subtracting oscillating terms from
physical observables.
