ar X iv : h ep - t h / 98 03 19 0 v 1 2 3 M ar 1 99 8 VARIATIONAL PRINCIPLE IN THE ALGEBRA OF ASYMPTOTIC FIELDS
نویسنده
چکیده
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.
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