Phase-Dependent Photon Emission Rates in Quantum Gravity-Induced Entangled States

TL;DR

This paper investigates how photon emission rates in quantum gravity-induced entangled states depend on entanglement degree and distance, proposing a potential method to detect entanglement through emission rate measurements.

Contribution

It provides a detailed analysis of photon emission rates in QGEM-generated entangled states, linking emission rates to entanglement degree and distance, which is a novel approach.

Findings

Photon emission rates decrease with increasing entanglement at small distances.

Emission rates approach a constant value independent of entanglement at large distances.

Photon emission rates could be used as a tool to detect quantum entanglement.

Abstract

Quantum entanglement, as one of the fundamental concepts in quantum mechanics, has garnered significant attention over the past few decades for its extraordinary nonlocality. With the advancement of quantum technology, quantum entanglement holds promising application for exploring fundamental physical theories. The experimental scheme of Quantum Gravity Induced Entanglement of Masses (QGEM) was proposed to investigate the quantum effects of gravity based on the Local Operations and Classical Communication (LOCC) theory. In this study, we analyze the quantum properties of the entangled final states generated in the QGEM scheme. Our findings reveal that the photon emission rates (transition rates) are closely related to the degree of entanglement. Specifically, the transition rate decreases as the degree of entanglement increases when the distance between particle pairs is small, then it gradually approaches an asymptotic value that is independent of entanglement as the distance increases. We then discuss the possibility of using photon emission rates to detect quantum entanglement with these results.