Journal
PHYSICAL REVIEW A
Volume 90, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.90.023845
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Funding
- Ministry of Science of Serbia [OI 171006, III 45016]
- NPRP [5-674-1-114]
- Qatar National Research Fund [6-021-1-005]
- Romanian Ministry of Education and Research [PN-II-ID-PCE-2011-3-0083]
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We propose a complex Ginzburg-Landau equation (CGLE) with localized linear gain as a two-dimensional model for pattern formation proceeding via spontaneous breaking of the axial symmetry. Starting from steady-state solutions produced by an extended variational approximation, simulations of the CGLE generate a vast class of robust solitary structures. These are varieties of asymmetric rotating vortices carrying the topological charge (TC), and four-to ten-pointed revolving stars, whose angular momentum is decoupled from the TC. The four-and five-pointed stars feature a cyclic change of their structure in the course of the rotation.
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