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Supersymmetry and the Dirac equation

Journal Article · · Ann. Phys. (N.Y.); (United States)
We discuss in detail two supersymmetries of the 4-dimensional Dirac operator D-italic-dash-bar/sup 2/ where D-italic-dash-bar = partial-dash-bar-ieA-italic-dash-bar, namely the usual chiral supersymmetry and a separate complex supersymmetry. Using SUSY methods developed to categorize solvable potentials in 1-dimensional quantum mechanics we systematically study the cases where the spectrum, eigenfunctions, and S-matrix of D-italic-dash-bar/sup 2/ can be obtained analytically. We relate these solutions to the solutions of the ordinary massive Dirac equation in external fields. We show that whenever a Schroedinger equation for a potential V(x) is exactly solvable, then there always exists a corresponding static scalar field phi(x) for which the Jackiw-Rebbi type (1+1)-dimensional Dirac equation is exactly solvable with V(x) and phi(x) being related by V(x) = phi/sup 2/(x)+phi''(x). We also discussed and exploit the supersymmetry of the path integral representation for the fermion propagator in an external field. copyright 1988 Academic Press, Inc.
Research Organization:
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
OSTI ID:
6607865
Journal Information:
Ann. Phys. (N.Y.); (United States), Journal Name: Ann. Phys. (N.Y.); (United States) Vol. 187:1; ISSN APNYA
Country of Publication:
United States
Language:
English