Quantum transduction is enhanced by single mode squeezing operators

A perfect quantum transducer with infinite quantum channel capacity generally satisfies the full matching condition but is hard to achieve in practice. In this work [1], we introduce a new approach to relax the full matching condition to half matching condition, which can be physically achieved by introducing two-photon drive in a transducer. Moreover, based on an example of electro-optic transducer we numerically show that full matching condition can even be achieved by adding another parametric drive. The technique developed is expected to boost the performance of transduction with various physical platforms.

[1] Changchun Zhong, Mingrui Xu, Aashish Clerk, Hong Tang and Liang Jiang, https://arxiv.org/abs/2204.05521