Electronic Resource
Springer
Communications in mathematical physics
20 (1971), S. 101-110
ISSN:
1432-0916
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
,
Physics
Notes:
Abstract We define the vacuum expectation value of the time-ordered product of two exponentials of free fields as a distribution using minimal singularity as a criterion. The implication of this definition for an exponentially self-coupled scalar field is studied in second order of a perturbation expansion.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01646529
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