Phys. Rev. D 27, 1798–1802 (1983)Improved semiclassical approximationReceived 29 July 1982; published in the issue dated 15 April 1983 A modification of the semiclassical method, applicable in massless theories, is proposed. It is shown that in 0 and 1 dimensions this approximation produces excellent numerical agreement with the exact or otherwise-computed results. The generalization to higher dimensions is discussed. © 1983 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.27.1798
DOI:
10.1103/PhysRevD.27.1798
PACS:
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