Quantum state transfer of superposed multi-photon states via phonon-induced dynamic resonance in an optomechanical system

TL;DR

This paper presents a method for transferring superposed multi-photon quantum states between optical cavities using phonon-induced dynamic resonance in an optomechanical system, achieving high fidelity in a deterministic process.

Contribution

It introduces a novel phonon-mediated transfer technique in a nonlinear optomechanical system, enabling high-fidelity transfer of complex quantum states.

Findings

Achieves transfer fidelity of 0.99 with current technology.

Enables deterministic transfer of Schrödinger cat states.

Operates effectively under high amplitude and weak coupling conditions.

Abstract

We propose a method to transfer macroscopically superposed states between two optical cavities mediated by a mechanical oscillator, which works in a nonlinear regime of optomechanical interaction. Our approach relies on the phonon-induced dynamic resonance, where the motion of mechanical oscillator dynamically sets on/off the resonance between two cavities. Our method assumes high amplitude limit of oscillator, weak coupling between optical cavities, and adiabatic approximation. We show that, under these conditions, various multi-photon quantum states, especially, Schr{\"o}dinger cat states, can be transferred with nearly perfect fidelity in a deterministic process. We show that transfer fidelity of 0.99 can be achieved using the experimental parameters in currently available technology.