Affordable Access

deepdyve-link deepdyve-link
Publisher Website

Negative-Energy Spinors and the Fock Space of Lattice Fermions at Finite Chemical Potential

Authors
  • Mendel, E.
  • Polley, L.
Type
Published Article
Publication Date
Jun 10, 1994
Submission Date
Mar 16, 1994
Identifiers
DOI: 10.1007/BF01571313
arXiv ID: hep-lat/9403020
Source
arXiv
License
Unknown
External links

Abstract

Recently it was suggested that the problem of species doubling with Kogut-Susskind lattice fermions entails, at finite chemical potential, a confusion of particles with antiparticles. What happens instead is that the familiar correspondence of positive-energy spinors to particles, and of negative-energy spinors to antiparticles, ceases to hold for the Kogut-Susskind time derivative. To show this we highlight the role of the spinorial ``energy'' in the Osterwalder-Schrader reconstruction of the Fock space of non-interacting lattice fermions at zero temperature and nonzero chemical potential. We consider Kogut-Susskind fermions and, for comparison, fermions with an asymmetric one-step time derivative.

Report this publication

Statistics

Seen <100 times