Quantum Communication Between Remote Mechanical Resonators

TL;DR

This paper proposes a new interferometric scheme enabling quantum state teleportation and transfer between distant mechanical resonators, facilitating the development of long-distance quantum networks with current technology.

Contribution

It introduces a novel interferometric protocol controlling mechanical resonator interactions via classical drives for quantum communication.

Findings

Design of protocols for state teleportation and direct quantum state transfer

Feasibility with current technology for building quantum networks

Potential to serve as a fundamental component in long-distance quantum communication

Abstract

Mechanical resonators represent one of the most promising candidates to mediate the interaction between different quantum technologies, bridging the gap between efficient quantum computation and long-distance quantum communication. In this letter, we introduce a novel interferometric scheme where the interaction of a mechanical resonator with input/output quantum pulses is controlled by an independent classical drive. We design protocols for state teleportation and direct quantum state transfer, between distant mechanical resonators. The proposed device, feasible with state-of-the-art technology, can serve as building block for the implementation of long-distance quantum networks of mechanical resonators.