Toward a quantum field theoretical description of oscillation effects

TL;DR

This paper introduces a quantum field theoretical approach using an axiomatic S-matrix framework to better understand oscillation phenomena, connecting it with existing wave packet and propagator methods.

Contribution

It presents a novel approach based on the axiomatic S-matrix and partial interaction switching for describing oscillations in quantum field theory, linking it to prior methods.

Findings

Provides a new framework for oscillation analysis in QFT

Establishes connections with wave packet and propagator approaches

Enhances theoretical understanding of oscillation phenomena

Abstract

In this paper, we propose an approach based on the theory of an axiomatic $S$ matrix and partially switching on an interaction, which is extremely suitable for describing the phenomenon of oscillations within the framework of quantum field theory. We discuss the relation of the proposed approach with other approaches based on considering of wave packets as asymptotic states or introducing of ``distance- or time-dependent propagators''.