Department of Physics, Shanghai University, Shanghai 200444, China.
Opt Lett. 2013 Jan 1;38(1):13-5. doi: 10.1364/OL.38.000013.
We investigate properties of dark solitons under competing nonlocal cubic-local quintic nonlinearities. Analytical results, based on a variational approach and confirmed by direct numerical simulations, reveal the existence of a unique dark soliton solutions with their width being independent of the degree of nonlocality, due to the competing cubic-quintic nonlinearities.
我们研究了在竞争的非局域立方-局域五阶非线性下暗孤子的性质。基于变分方法的分析结果，并通过直接数值模拟得到了验证，揭示了存在具有独特宽度的暗孤子解，由于竞争的立方-五阶非线性，其宽度与非局域性程度无关。
