Advances in Position-Momentum Entanglement: A Versatile Tool for Quantum Technologies

TL;DR

This review discusses recent advances in position-momentum entanglement, highlighting its generation, measurement, and applications in quantum technologies, emphasizing its versatility as a high-dimensional quantum resource.

Contribution

It provides a comprehensive overview of recent progress in spatial entanglement, including new methods for generation, measurement techniques, and diverse quantum applications.

Findings

Enhanced methods for generating spatial entanglement

Novel measurement techniques for quantifying entanglement

Potential applications in quantum communication and computing

Abstract

Position-momentum entanglement is a versatile high-dimensional resource in quantum optics. From fundamental tests of reality, to application in quantum technologies, spatial entanglement has had an increasing growth in recent years. In this review, we explore these advances, starting from the generation of spatial entanglement, followed by the different types of measurements for quantifying the entanglement, and finishing with different quantum-based applications. We conclude the review with a discussion and future perspectives on the field.