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Breather Interaction Properties Induced by Self-Steepening and Space-Time Correction |
Yu-Han Wu1,2,3, Chong Liu1,2,3**, Zhan-Ying Yang1,2,3, Wen-Li Yang1,2,3,4 |
1School of Physics, Northwest University, Xi'an 710127 2Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127 3NSFC-SPTP Peng Huanwu Center for Fundamental Theory, Xi'an 710127 4Institute of Modern Physics, Northwest University, Xi'an 710127
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Cite this article: |
Yu-Han Wu, Chong Liu, Zhan-Ying Yang et al 2020 Chin. Phys. Lett. 37 040501 |
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Abstract We study the properties of breather interactions in nonlinear Kerr media with self-steepening and space-time correction and with either self-focusing or self-defocusing nonlinearity, and present a new family of exact breather solutions via the Darboux transformation with a special-designed quadratic spectral parameter. In contrast to the previous results of the nonlinear Schrödinger equation (NLSE) hierarchy, we show that the relative phase of colliding breathers has a significant effect on the collision manifestation. In particular, only the out-of-phase interactions can generate small amplitude waves at the collision center, which are analogous to the NLSE super-regular breathers. Our results will deepen our understanding of the properties of breather interactions and they will offer the possibility of experimental observations of super-regular breather dynamics in systems with self-steepening and space-time correction.
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Received: 09 January 2020
Published: 24 March 2020
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Fund: Supported by the National Natural Science Foundation of China (Grant Nos. 11705145, 11947301, 11434013, and 11425522), the Major Basic Research Program of Natural Science of Shaanxi Province (Grant Nos. 2017KCT-12 and 2017ZDJC-32), and the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2018JQ1003). |
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