Phys. Rev. C 41, 1851–1854 (1990)Evaluation of Dirac sea effects in a finite systemReceived 7 September 1989; published in the issue dated April 1990 The exact evaluation of one-loop corrections in a finite (1+1)-dimensional system is described. Scalar and vector (baryon) densities are calculated in a background of Gaussian scalar and vector potentials. The results are compared with a derivative expansion in inverse powers of the effective mass. Excellent agreement is found when derivative terms up to second order are retained. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.41.1851
DOI:
10.1103/PhysRevC.41.1851
PACS:
21.60.-n, 11.10.Gh
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