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Momentum picture of motion in Lagrangian quantum field theory

Bozhidar Z. Iliev
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Abstract

The basic aspects of the momentum picture of motion in Lagrangian quantum field theory are given. Under some assumptions, this picture is a 4-dimensional analogue of the Schrödinger picture: in it the field operators are constant, spacetime-independent, while the state vectors have a simple, exponential, spacetime-dependence. The role of these assumptions is analyzed. The Euler-Lagrange equations in momentum picture are derived and attention is paid on the conserved operators in it.

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Bozhidar Z. Iliev. 2003-11-01. Momentum picture of motion in Lagrangian quantum field theory. https://arxiv.org/abs/hep-th/0311003

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