Teleportation-based microwave-optical quantum transduction enhanced by squeezing

Quantum transduction is an important building blockfor quantum networking. Although various platformshave been proposed, the transduction effi ciency of the-state-of-the-art systems is still way below the thresholdto provide robust quantum information transductionvia a direct conversion approach. In [Phys. Rev.Applied 16, 064044 (2021)], we propose a differenttransduction paradigm based on teleportation thatshows a much higher rate in the low cooperativitiyregion. While more recently, [arXiv:2204.05521]proposes to utilize microwave squeezing to help withdirect conversion. In this work, we explore the role ofsqueezing in teleportation-based transduction protocoland identify a signifi cant performance boost viaevaluating quantum capacity lower and upper bounds.Our analyses includes both microwave squeezing andoptical squeezing, and provides a systematicalbenchmark between teleportation-based approach anddirect-conversion approach.