Effective and Robust Generation of Deterministic Magnon Schrödinger Cat States in the Hybrid System

Abstract

A scheme is proposed for effective and robust generation of magnon Schrödinger cat states in the hybrid optomagnonical system. The Schrödinger cat states can be generated from the vacuum states and the physical model is easy to be implemented. It is worth noting that the effective normalized coupling strength of the optomagnonical system is able to reach strong coupling regime, which leads to a fast evolution process. Thus, the high fidelity and fast preparation of Schrödinger cat states can be achieved. Besides, the numerical simulations show that the scheme is robust against the decay caused by environment and the additive white Gaussian noise (AWGN). It is the hope that the scheme may open a new path to the fast generation of Schrödinger cat states in the hybrid system.