Eigenvalues and invariants for gauged fermions in a gravitational field

Details Eigenvalues and invariants for gauged fermions in a gravitational field Eigenvalues and invariants for gauged fermions in a gravitational field

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvd..47..566f&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 47, Issue 2, 15 January 1993, pp.566-569

Other

Other Topics In General Relativity And Gravitation, Other Nonperturbative Techniques

Scientific paper

We demonstrate by explicit computation that an SU(2) gauge instanton
does alter the spectrum of a fermion in an external gravitational field.
This is contrary to results reported in the literature. Nevertheless
when all topological boundary invariants are included the index of the
Dirac operator is not changed by the field.

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