Quantum transduction is enhanced by single mode squeezing operators

TL;DR

This paper proposes a new method to enhance quantum transduction capacity by using a two-photon drive, relaxing impedance matching conditions, and employing Bloch-Messiah decomposition to improve quantum state conversion.

Contribution

It introduces a novel approach using two-photon drive to relax impedance matching, enhancing quantum transduction capacity in various physical platforms.

Findings

Quantum capacity can be increased with two-photon drive.

Parameter regimes with positive quantum capacity are identified.

Drive-induced enhancement improves quantum state conversion performance.

Abstract

Quantum transduction is an essential ingredient in scaling up distributed quantum architecture and is actively pursued based on various physical platforms. However, demonstrating a transducer with positive quantum capacity is still practically challenging. In this work, we discuss a new approach to relax the impedance matching condition to half impedance matching condition, which is achieved by introducing two-photon drive in the electro-optic transducer. We show the quantum transduction capacity can be enhanced and can be understood in a simple interference picture with the help of Bloch-Messiah decomposition. The parameter regimes with positive quantum capacity is identified and compared with and without the drive, indicating that the parametric drive-induced enhancement is really promising in demonstrating quantum state conversion, and is expected to boost the performance of transduction with various physical platforms.