Quantum state conversion in opto-electro-mechanical systems via shortcut to adiabaticity

TL;DR

This paper introduces a fast, high-fidelity quantum state conversion method in opto-electro-mechanical systems using shortcut to adiabaticity, overcoming the slow nature of traditional adiabatic processes for quantum computing applications.

Contribution

It proposes a novel scheme to achieve rapid quantum state conversion by modifying coupling strength, eliminating the need for slow adiabatic processes and precise timing control.

Findings

Achieves fast quantum state conversion with high fidelity.

Suppresses population of unwanted intermediate states.

Enables practical optical-microwave photon state transfer.

Abstract

Adiabatic process has found many important applications in modern physics, the distinct merit of which is that it does not need accurate control over the timing of the process. However, it is a slow process, which limits the application in quantum computation, due to the limited coherent times of typical quantum systems. Here, we propose a scheme to implement quantum state conversion in opto-electro-mechanical systems via shortcut to adiabaticity, where the process can be greatly speeded up while the precise timing control is still not necessary. In our scheme, only by modifying the coupling strength, we can achieve fast quantum state conversion with high fidelity, where the adiabatic condition does not need to be met. In addition, the population of the unwanted intermediate state can be further suppressed. Therefore, our protocol presents an important step towards practical state conversion between optical and microwave photons, and thus may find many important applications in hybrid quantum information processing.