论文标题
在微腔极化子中搜索Kardar-Parisi-Zhang阶段
Searching for the Kardar-Parisi-Zhang phase in microcavity polaritons
论文作者
论文摘要
最近的近似分析工作表明，在外部泵的某些值下，微腔极化子的光学参数振荡器（OPO）可能会为2D提供长期寻求的Kardar-Parisi-Zhang（KPZ）物理。在这里，通过使用截短的Wigner方法来求解完整的显微镜模型，我们证明了OPO的这种预测的KPZ相对于涡旋或其他效果的出现是可靠的。对于那些泵的强度，垂直于泵的方向的空间相关以及相波的分布与KPZ普遍性的形式非常匹配。这强烈表明在未来的Polariton Opo实验中观察KPZ行为的生存能力。
Recent approximate analytical work has suggested that, at certain values of the external pump, the optical parametric oscillator (OPO) regime of microcavity polaritons may provide a long sought realisation of Kardar-Parisi-Zhang (KPZ) physics in 2D. Here, by solving the full microscopic model numerically using the truncated Wigner method, we prove that this predicted KPZ phase for OPO is robust against the appearance of vortices or other effects. For those pump strengths, spatial correlations in the direction perpendicular to the pump, and the distribution of phase fluctuations, match closely to the forms characteristic of the KPZ universality. This strongly indicates the viability of observing KPZ behaviour in future polariton OPO experiments.
