Variational Principle in the Algebra of Asymptotic Fields

TL;DR

This paper introduces a variational principle for quantum field theories using asymptotic fields as trial functions, providing a new approach to solving such theories.

Contribution

It proposes a novel variational method based on the algebra of asymptotic fields for quantum field theories.

Findings

Illustrated the variational principle in simple cases.

Provided a framework for applying the principle to quantum field solutions.

Abstract

This paper proposes a variational principle for the solutions of quantum field theories in which the ``trial functions'' are chosen from the algebra of asymptotic fields, and illustrates this variational principle in simple cases.