Topology and Low Lying Fermion Modes
نویسنده
چکیده
Low lying fermionic modes are believed to play an important rôle in QCD. This review covers some of the recent developments in the study of the relationship of low lying fermion modes with topology in QCD. The study of topology in general is not covered here. In particular, fermionic eigenmodes (including zero modes) are important in 3 areas discussed here: (1) low lying modes in particle spectrum, (2) low lying modes in global topology (e.g., chiral fermions), (3) low lying modes in the implementation of chiral fermions. The use of fermionic modes to probe for possible mechanism of chiral symmetry breaking in QCD are possible. The recent advent of the construction of chiral fermions on the lattice are crucial in new studies.
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