论文标题
Kerr非线性阻碍了耦合量子振荡器的对称性状态
Kerr nonlinearity hinders symmetry-breaking states of coupled quantum oscillators
论文作者
论文摘要
我们研究了Kerr非谐性对耦合量子振荡器的对称破坏现象的影响。我们研究了两种类型的对称过程，即不均匀的稳态（或量子振荡死亡态）和量子嵌合体状态。值得注意的是，发现Kerr的非线性在两种情况下都阻碍了对称性的过程。我们使用量子主方程的直接模拟和随机半经典模型的分析来建立结果。有趣的是，在量子振荡死亡的情况下，Kerr非线性强度的提高倾向于有利于对称性，同时降低了量子机械纠缠的程度。这项研究提出了一种有用的手段，用于控制量子技术的破坏对称性状态。
We study the effect of Kerr anharmonicity on the symmetry breaking phenomena of coupled quantum oscillators. We study two types of symmetry-breaking processes, namely the inhomogeneous steady state (or quantum oscillation death state) and quantum chimera state. Remarkably, it is found that Kerr nonlinearity hinders the process of symmetry-breaking in both the cases. We establish our results using direct simulation of quantum master equation and analysis of the stochastic semiclassical model. Interestingly, in the case of quantum oscillation death, an increase in the strength of Kerr nonlinearity tends to favor the symmetry and at the same time decreases the degree of quantum mechanical entanglement. This study presents a useful mean to control and engineer symmetry-breaking states for quantum technology.
