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Scalar Field Theory in the Derivative Expansion

Gordon Chalmers
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Abstract

The quantum correlations of scalar fields are examined as a power series in derivatives. Recursive algebraic equations are derived and determine the amplitudes; all loop integrations are performed. This recursion contains the same information as the usual loop expansion. The approach is pragmatic and generalizable to most quantum field theories.

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Gordon Chalmers. 2002-09-09. Scalar Field Theory in the Derivative Expansion. https://arxiv.org/abs/hep-th/0209075

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