腔磁杂化系统中磁振子阻塞的实现  

Realization of magnon blockade in a hybrid cavity-magnonic system

作　　者：欧孝飞 李欣悦 袁宁 王楠 朱爱东 OU Xiaofei;LI Xinyue;YUAN Ning;WANG Nan;ZHU Aidong(College of Science,Yanbian University,Yanji 133002,China)

机构地区：[1]延边大学理学院,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2022年第4期289-292,311,共5页Journal of Yanbian University（Natural Science Edition）

基　　金：国家自然科学基金(12264051)。

摘　　要：为了研究腔磁杂化系统中磁振子分布的量子统计性质,构建了一种单量子源,并利用全量子理论在含有声子模的杂化腔磁系统中研究了磁振子阻塞的操控方案及其物理机制.通过求解主方程得到了磁振子的等时二阶关联函数和平均磁子数,并分析了腔模之间的耦合对磁振子反聚束的影响.数值模拟结果表明,增加隧穿耦合、腔与机械模的耦合、腔与磁子模的耦合可有效增强磁振子的反聚束效应.本方案可为在实验中实现单磁子源提供参考.In order to study the quantum statistical properties of magnon distribution in a cavity-magnonic system, we construct a single quanta source, and study the engineering of magnon blockade and its physical mechanism in a hybrid cavity-magnonic system containing a phonon mode by using the total quantum theories.The equal-time second-order correlation function of the magnons and the average number of magnon are obtained by solving the master equation, from which the influence of the coupling between cavity modes on the antibunching effect of the magnon is analyzed.The results of numerical simulation show that the antibunching effect of the magnon can be enhanced effectively by increasing the tunneling coupling, the coupling between the cavity and the mechanical mode, and the coupling between the cavity and the magnon mode.This scheme can provide a reference for experimentally realizing a single-magnon source.

关 键 词：腔磁杂化系统 反聚束效应 二阶关联函数 磁振子阻塞 

分 类 号：O431.2[机械工程—光学工程]