Dephasing through Bremsstrahlung emission: insights from quantum Boltzmann equation

TL;DR

This paper explores how Bremsstrahlung emission causes decoherence in quantum systems, using quantum Boltzmann equations to model fermion-photon interactions and analyze dephasing effects.

Contribution

It introduces a quantum field theory-based approach to quantify decoherence from Bremsstrahlung, advancing understanding of quantum coherence loss mechanisms.

Findings

Model accurately predicts dephasing in Stern-Gerlach interferometers

Results align with classical Bremsstrahlung predictions

Provides insights for quantum sensing and interferometry applications

Abstract

We investigate decoherence mechanisms in open quantum systems using quantum field theory techniques and the quantum Boltzmann equation. Specifically, we focus on decoherence through Bremsstrahlung emission, a fundamental process in quantum electrodynamics leading to coherence loss. By applying quantum field theory techniques and quantum Boltzmann equation, we model the fermion-photon interaction in the Stern-Gerlach interferometer and analyze the induced dephasing factor. Our approach offers significant advancements in understanding decoherence and its potential applications in quantum sensing and atomic interferometry. We demonstrate the accuracy of our method by comparing results to classical Bremsstrahlung.