| Autor: |
Wang, Ying, Cheng, Quan, Zhao, Li, Wen, Wen, Wang, Wei |
| Zdroj: |
Results in Physics; Mar2020, Vol. 16, pN.PAG-N.PAG, 1p |
| Abstrakt: |
• The GPE for sonic horizon problem with quintic nonlinearity is analytically solved. • Key sonic horizon features are shown via F-expansion and variational methods. • The optimization effects of quintic nonlinearity are analytically and visually shown. We study the dynamics of sonic black hole horizon formation of quasi-one-dimensional (1D) Bose-Einstein condensate incorporating higher-order quintic nonlinear interaction. Based on the one dimensional Gross-Pitaevskii equation with nonlinearity up to the quintic order, we derived a novel analytical formula for the key dynamical variables of sonic horizon formation using the modified variational method and exact F-expansion method. We obtained good agreement between the key dynamical variables from the two different methods. The stabilization effects of higher-order nonlinear interaction along with the more precise location of the sonic horizon boundary were illustrated. The theoretical results obtained in this work can be used to guide relevant experimental observations of sonic black hole-related dynamics incorporating the effects of higher-order nonlinear interaction. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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