Impact of Scalar NSI on Spatial and Temporal Correlations in Neutrino Oscillations

TL;DR

This paper investigates how scalar non-standard interactions influence quantum correlations, specifically non-locality, in neutrino oscillations, considering both spatial and temporal aspects, in the context of recent experimental bounds.

Contribution

It is the first to analyze the impact of scalar NSI on quantum non-locality measures in neutrino oscillations, expanding beyond vector NSI considerations.

Findings

Scalar NSI significantly affect non-locality measures.

Both spatial and temporal correlations are impacted by scalar NSI.

Results provide insights for future precision neutrino experiments.

Abstract

Neutrino oscillation experiments are gradually approaching an era of precision, where subleading effects can also be tested. One such subleading effect is Non-Standard Interactions (NSI), which can play a crucial role in neutrino oscillations. Various works have typically discussed vector NSI in the context of quantum correlations. Recently, there have been improvements in the bounds on scalar NSI as well. In light of these developments, we aim to examine the impact of scalar NSI on quantum correlation measures. To analyze this impact, we are considering the strongest measure of quantum correlation, i.e., non-locality. Our study will encompass both spatial and temporal non-locality measures.