驱动耗散光量子流体中的稳态量子涡街
Stationary quantum vortex street in a driven-dissipative quantum fluid of light
摘要：
我们研究了一类新的密度相缺陷的形成在共振驱动的二维量子流体的光。系统的双稳性允许形成低密度区域，其中包含被限制在高密度区域之间的密度相位奇异性。我们发现在一维通道中，平行于通道轴形成奇数（1-3）或偶数（2-4）个暗孤子，以适应由势垒中的泵浦引起的相位约束。这些孤立子分子通常是不稳定的，并朝着在\emph{cw}实验中可直接观察到的静态对称或反对称的涡列阵列发展。这种光子平台的灵活性允许实现更复杂的潜力，如迷宫般的通道，与连接入口，从而解决迷宫的涡街。
英文摘要：
We investigate the formation of a new class of density-phase defects in a resonantly driven 2D quantum fluid of light. The system bistability allows the formation of low density regions containing density-phase singularities confined between high density regions. We show that in 1D channels, an odd (1-3) or even (2-4) number of dark solitons form parallel to the channel axis in order to accommodate the phase constraint induced by the pumps in the barriers. These soliton molecules are typically unstable and evolve toward stationary symmetric or anti-symmetric arrays of vortex streets straightforwardly observable in \emph{cw} experiments. The flexibility of this photonic platform allows implementing more complicated potentials such as maze-like channels, with the vortex streets connecting the entrances and thus solving the maze.
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