Electromagnetically Induced Transparency with Quantized Fields in Optocavity Mechanics

TL;DR

This paper demonstrates electromagnetically induced transparency (EIT) in optomechanical systems using quantized, squeezed fields, showing EIT effects at the single-photon level and at relatively high temperatures, with potential for quantum memory applications.

Contribution

It introduces the observation of EIT with quantized fields in optomechanics, highlighting the feasibility of quantum memory elements at practical temperatures.

Findings

EIT dip persists at single-photon photon number levels.

EIT observed at temperatures around 100 mK.

Homodyne detection confirms EIT in quantum fields.

Abstract

We report electromagnetically induced transparency using quantized fields in optomechanical systems. The weak probe field is a narrow band squeezed field. We present a homodyne detection of EIT in the output quantum field. We find that the EIT dip exists even though the photon number in the squeezed vacuum is at the single photon level. The EIT with quantized fields can be seen even at temperatures of the order of 100 mK paving the way for using optomechanical systems as memory elements.