论文标题
引起驱动的北极星超级流体的临界速度
Critical velocity in resonantly driven polariton superfluids
论文作者
论文摘要
我们研究了必要的条件，在该条件下，驱动驱动的激子极化量超极流向障碍物会产生湍流。临界速度的价值是通过从椭圆形到双曲线的过渡来很好地估计操作员的过渡，但弗里施，波莫，瑞卡（Pomeau），里卡（Rica）对障碍物的超流量流进行了，尽管构造了北极星超级流体的方程式的性质却大不相同。我们发现分析性估计值取决于泵的振幅和泵能量失调，这与我们的数值计算完全一致。
We study the necessary condition under which a resonantly driven exciton polariton superfluid flowing against an obstacle can generate turbulence. The value of the critical velocity is well estimated by the transition from elliptic to hyperbolic of an operator following ideas developed by Frisch, Pomeau, Rica for a superfluid flow around an obstacle, though the nature of equations governing the polariton superfluid is quite different. We find analytical estimates depending on the pump amplitude and on the pump energy detuning, quite consistent with our numerical computations.
