Optomechanical interface for probing matter-wave coherence

TL;DR

This paper proposes a novel interface combining matter-wave interferometry and cavity optomechanics to transfer and detect quantum coherence, enabling advanced quantum information encoding and analysis using existing experimental technology.

Contribution

It introduces a mechanism for transferring quantum features from matter-waves to optomechanical devices, opening new avenues for quantum coherence measurement and information encoding.

Findings

Demonstrates transfer of non-classical features to optomechanical systems

Proposes a method for detecting quantum coherence via interference fringes

Utilizes existing technology for implementation

Abstract

We combine matter-wave interferometry and cavity optomechanics to propose a coherent matter--light interface based on mechanical motion at the quantum level. We demonstrate a mechanism that is able to transfer non-classical features imprinted on the state of a matter-wave system to an optomechanical device, transducing them into distinctive interference fringes. This provides a reliable tool for the inference of quantum coherence in the particle beam. Moreover, we discuss how our system allows for intriguing perspectives, paving the way to the construction of a device for the encoding of quantum information in matter-wave systems. Our proposal, which highlights previously unforeseen possibilities for the synergetic exploitation of these two experimental platforms, is explicitly based on existing technology, available and widely used in current cutting-edge experiments.