Momentum picture of motion in Lagrangian quantum field theory
classification
✦ hep-th
math-phmath.MPquant-ph
keywords
picturefieldmomentumassumptionslagrangianmotionoperatorsquantum
read the original 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 Schr\"odinger 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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