Pure optomechanical dark mode

TL;DR

This paper introduces two methods to generate a pure optomechanical dark mode, eliminating the bright mode even with low cooperativity and different cavity losses, enhancing quantum state transfer.

Contribution

It proposes novel approaches to produce a pure optomechanical dark mode, improving quantum information processing capabilities.

Findings

Pure dark mode can be achieved with small cooperativity.

Bright mode is completely eliminated in the proposed methods.

Enhances quantum state transfer efficiency.

Abstract

Optomechanical dark mode plays a central role in effective mechanically-mediated conversion of two different optical fields. In this paper, two approaches are proposed to generate pure optomechanical dark mode, in which the optomechanical bright mode is absolutely eliminated even with small cooperativity and different losses of the two optical cavities. Only the optomechanical dark mode is left to facilitate quantum state transfer. This result provides a new perspective to utilize the dark state or dark mode for quantum information processing.