QED background against atomic neutrino process with initial spatial phase

TL;DR

This paper proposes a method to suppress QED background noise in atomic neutrino experiments using photonic crystal waveguides with spatial phase control, enabling clearer detection of neutrino-related signals.

Contribution

It introduces a novel approach to reduce QED background in atomic neutrino processes by employing spatial phase manipulation in photonic crystal waveguides.

Findings

QED background can be significantly suppressed using spatial phase control.

Photonic crystal waveguides enable enhanced neutrino detection signals.

The method improves the feasibility of atomic neutrino experiments.

Abstract

Atomic deexcitation emitting a neutrino pair and a photon is expected to provide a novel method of neutrino physics if it is enhanced by quantum coherence in a macroscopic target. However, the same enhancement mechanism may also lead to a serious problem of enhanced QED background process. We show that the QED background can be suppressed enough in the photonic crystal waveguide by using the spatial phase that is imprinted in the process of initial coherence generation in the target at excitation.