Electromagnetically induced acoustic transparency with a superconducting circuit

TL;DR

This paper demonstrates electromagnetically induced transparency (EIT) of surface acoustic waves using a superconducting circuit, enabling new control over acoustic interactions in quantum systems.

Contribution

It introduces a novel method to achieve EIT with a superconducting artificial atom coupled to surface acoustic waves, expanding quantum control capabilities.

Findings

Successful observation of EIT in a superconducting circuit with acoustic waves

Demonstration of control of acoustic transparency via microwave drive

Potential for engineering advanced quantum acoustic devices

Abstract

We report the observation of Electromagnetically Induced Transparency (EIT) of a mechanical field, where a superconducting artificial atom is coupled to a 1D-transmission line for surface acoustic waves. An electromagnetic microwave drive is used as the control field, rendering the superconducting transmon qubit transparent to the acoustic probe beam. The strong frequency dependence of the acoustic coupling enables EIT in a ladder configuration due to the suppressed relaxation of the upper level. Our results show that superconducting circuits can be engineered to interact with acoustic fields in parameter regimes not readily accessible to purely electromagnetic systems.