Robust optomechanical state transfer under composite phase driving

TL;DR

This paper introduces a phase-tailored composite pulse technique for robust optomechanical state transfer that enhances resilience against system variations and loss, inspired by quantum control methods.

Contribution

It presents a novel composite phase driving method that improves robustness and stability in optomechanical state transfer processes.

Findings

Optimal phases maximize robustness in lossy systems

The method protects against parameter variations

It maintains system near steady state during transfer

Abstract

We propose a technique for robust optomechanical state transfer using phase-tailored composite pulse driving with constant amplitude. Our proposal is inspired by coherent control techniques in lossless driven qubits. We demonstrate that there exist optimal phases for maximally robust excitation exchange in lossy strongly-driven optomechanical state transfer. In addition, our proposed composite phase driving also protects against random variations in the parameters of the system. However, this driving can take the system out of its steady state. For this reason, we use the ideal optimal phases to produce smooth sequences that both maintain the system close to its steady state and optimize the robustness of optomechanical state transfer.