Using the Kato–Rellich perturbation theory for linear operators, the analyticity of the Schrödinger energy levels En(l) in the half‐plane Re l>− 1/2 has been proved for a large class of quark‐confining potentials.
REFERENCES
1.
2.
and erratum
24
(4
) (1983
)., J. Math. Phys.
3.
4.
T. Kato, Perturbation Theory for Linear Operators (Springer, Berlin, 1976).
5.
Reference 4, Theorem 2.6, pp. 377–8.
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© 1983 American Institute of Physics.
1983
American Institute of Physics
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