Stable gray soliton pinned by a defect in a microcavity-polariton condensate

作者：Chen Ting Wei; Hsieh Wen Feng; Cheng Szu Cheng^*

来源：Optics Express, 2015, 23(19): 24974-24983.

DOI：10.1364/OE.23.024974

We study the spatially localized dark state, called dark soliton, in a one-dimensional system of the non-resonantly pumped microcavity-polariton condensate (MPC). From the recent work by Xue and Matuszewski [Phys. Rev. Lett. 112, 216401 (2014)], we know that the dark soliton in the pure MPC system is unstable. But we find that a dark soliton pinned by a defect in the impure MPC becomes a gray soliton and can be stabilized by the presence of a defect. Moreover, the stable regime of the gray soliton is given in terms of the defect strength and pump parameter.

• 出版日期2015-9-21