摘要
多粒子团簇态因其最大连通性、持续纠缠性和对退相干的鲁棒性,近年来受到广泛关注.如何制备多粒子团簇态成为当前量子信息领域研究的热点问题之一.提出快速实现量子相位门的超绝热捷径方案并利用其制备四粒子团簇态.传统的绝热通道方案需要分两步,并且由于演化时间过长可能会导致方案无效.本方案只需一步,这大大减少了实验实现的难度和实验过程中的各种损耗.数值模拟结果表明:超绝热捷径方案对腔系统中原子自发辐射和腔衰减引起的退相干效应具有鲁棒性,并且比传统的绝热通道方案花费的时间更短.
Multi-particle cluster states,which have received much attention recently for their maximum connectivity,persistent entanglement and robustness to decoherence.How to prepare multi-particle cluster states has become one of the hot issues in the field of quantum information.This work introduces superadiabatic shortcut scheme for quantum phase gates and prepare 4-particle cluster states.The traditional adiabatic channel scheme requires two steps,and may be ineffective due to the long evolution time of the system.The scheme in this work takes only one step,which greatly reduces the difficulty of experimental realization and various losses in the experimental process.Numerical simulations show that the superadiabatic shortcut scheme is robust to the decoherence effects caused by spontaneous atomic emission and cavity decay in the cavity system,and takes less time than the traditional adiabatic channel scheme.
作者
李微
赵若冰
刘雨
LI Wei;ZHAO Ruobing;LIU Yu(College of Physical Science and Technology,Bohai University,Jinzhou 121013,China)
出处
《渤海大学学报(自然科学版)》
2025年第3期214-221,共8页
Journal of Bohai University(Natural Science Edition)
基金
渤海大学校级科研项目(0525xn078).
