Quantum State Transfer Between Distant Optomechanical Interfaces via Shortcut to Adiabaticity

TL;DR

This paper introduces a fast, high-fidelity quantum state transfer protocol between distant optomechanical interfaces using shortcut to adiabaticity, enabling efficient quantum networking.

Contribution

It presents a novel protocol combining accelerated adiabatic processes and population conversion for improved quantum state transfer fidelity.

Findings

Higher transfer fidelity achieved compared to traditional methods

Transfer speed and coupling strength are critical for performance

Bidirectional transfer enables potential quantum network applications

Abstract

We propose a protocol to realize fast high-fidelity quantum state transfer between distant optomechanical interfaces connected by a continuum waveguide. The scheme consists of three steps: two accelerating adiabatic processes joined by a population conversion process. In comparison to the traditional adiabatic technique, our method reaches a higher transfer fidelity with a shorter time. Numerical results show that the fidelity of this transfer scheme in the dissipative system mainly depends on the protocol speed and the coupling strength of the waveguide and cavities. Assisted by inverting the pulse sequence, a bidirectional transfer can be implemented, indicating the potential to build a quantum network.