Zero Modes of the Dirac Operator for regular Einstein-Yang-Mills Background fields

Details Zero Modes of the Dirac Operator for regular Einstein-Yang-Mills Background fields Zero Modes of the Dirac Operator for regular Einstein-Yang-Mills Background fields

1997-02-16

arxiv.org/abs/hep-th/9702119v2

Commun.Math.Phys. 190 (1998) 585-596

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, LaTeX. Preprint archive number corrected and minor improvements of the text

Scientific paper

10.1007/s002200050253

The existence of normalizable zero modes of the twisted Dirac operator is proven for a class of static Einstein-Yang-Mills background fields with a half-integer Chern-Simons number. The proof holds for any gauge group and applies to Dirac spinors in an arbitrary representation of the gauge group. The class of background fields contains all regular, asymptotically flat, CP-symmetric configurations with a connection that is globally described by a time-independent spatial one-form which vanishes sufficiently fast at infinity. A subset is provided by all neutral, spherically symmetric configurations which satisfy a certain genericity condition, and for which the gauge potential is purely magnetic with real magnetic amplitudes.

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