Influence of detector motion in entanglement measurements with photons

TL;DR

This paper examines how the motion of detectors affects the measurement of entangled photon polarization correlations, crucial for satellite-based quantum communication and global quantum information protocols.

Contribution

It provides a theoretical analysis of how detector motion influences Bell inequality measurements with entangled photons, aiding future satellite experiments.

Findings

Detector motion modifies polarization correlation measurements.

Bell inequality violations depend on detector velocity.

Results inform design of satellite-based quantum communication systems.

Abstract

We investigate how the polarization correlations of entangled photons described by wave packets are modified when measured by moving detectors. For this purpose, we analyze the Clauser-Horne-Shimony-Holt Bell inequality as a function of the apparatus velocity. Our analysis is motivated by future experiments with entangled photons designed to use satellites. This is a first step towards the implementation of quantum information protocols in a global scale.