Quantum entanglement is one of the key methods in quantum information processing, but it is difficult to prepare quantum entanglement. Quantum walk is widely used in quantum computation and quantum simulation, it can be applied to the preparation of quantum entangled states. In this paper, a controllable quantum network coding scheme based on quantum walk is proposed. With the help of quantum walk, the scheme preliminary realized the entanglement distribution of butterfly network, reduced entanglement resources and enhanced scalability. According to the existing technology, it is feasible to implement the quantum network coding scheme proposed in this paper.

中文翻译：

---

基于量子行走的可控量子网络编码方案

量子纠缠是量子信息处理的关键方法之一，但量子纠缠的制备难度较大。量子行走广泛应用于量子计算和量子模拟，可应用于量子纠缠态的制备。本文提出了一种基于量子游走的可控量子网络编码方案。该方案借助量子行走，初步实现了蝴蝶网络的纠缠分布，减少了纠缠资源，增强了可扩展性。根据现有技术，实现本文提出的量子网络编码方案是可行的。