Extending the Schrödinger quantum field to parametrized quantum field theory: A variational approach using the Pavšič–Barut action
This paper extends the Schrödinger quantum field—a wave function treated as a fundamental quantum field describing particle states and probabilities—to a fully relativistic framework within Parametrized Relativistic Quantum Theory (PRQT). A hallmark of parametrized theories is the use of an invariant evolution paramete...