@article{Cuong_Xuan Khoa_Long Van_Canh Trung_Dinh Thuan_Trippenbach_2019, title={Two Spot Coupled Ring Resonators}, volume={29}, url={https://vjs.ac.vn/index.php/cip/article/view/13810}, DOI={10.15625/0868-3166/29/4/13810}, abstractNote={<p><strong>Abstract</strong>. <em>We consider a model of two coupled ring waveguides with constant linear gain and nonlinear absorption with space-dependent coupling. This system can be implemented in various physical situations as optical waveguides, atomic Bose-Einstein condensates, polarization condensates, etc. It is described by two coupled nonlinear SchrÃ¶dinger equation. For numerical simulations, we take local two-gaussian coupling.</em></p><p><em>It is found in our previous papers that, depending on the values of involved parameters, we can obtain several interesting nonlinear phenomena, which include spontaneous symmetry breaking, modulational instability leading to generation of stable circular flows with various vorticities, stable inhomogeneous states with interesting structure of currents flowing between rings, as well as dynamical regimes having signatures of chaotic behavior. </em></p><p><em>This research will be associated with experimental investigation planned in Freie UniversitÃ¤t Berlin, in the group of prof. Michael Giersig.</em></p>}, number={4}, journal={Communications in Physics}, author={Cuong, Nguyen Duy and Xuan Khoa, Dinh and Long Van, Cao and Canh Trung, Le and Dinh Thuan, Bui and Trippenbach, Marek}, year={2019}, month={Dec.}, pages={491} }