Summary
An exact analytic expression is obtained for the ground-state energydensity for a nontrivial quantum field theory in four dimensions of space-time. The basic idea in setting up the model is to develop the interaction in such a way as to give rise to an exact integrable expression for the path integral of the vacuum-to-vacuum transition amplitude with respect to the Gaussian measure in Euclidean space in the absence of external sources.
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Work supported by the Department of National Defence under CRAD No. 3610-637: F4122.
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Manoukian, E.B. Exact ground-state energy-density in a nontrivial quantum field theory in four dimensions. Lett. Nuovo Cimento 38, 318–320 (1983). https://doi.org/10.1007/BF02786000
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DOI: https://doi.org/10.1007/BF02786000