报告题目（Title）：Systems with Parity-Time Symmetry: from Quantum Mechanics to Nonlinear Waves（具有PT对称性的系统：从量子力学到非线性波）
报 告 人（Speaker）：Vladimir V. Konotop (Faculty of Sciences, University of Lisbon, Portugal)
报告时间（Time）：2018年12月20 日 （周四） 10：00
报告地点（Place）：校本部G309
邀请人（inviter）：张永平
报告摘要（Abstract）：
Nonlinear phenomena in media obeying parity-time (PT) symmetry, i.e. having dissipation and gain balancing each other, attract rapidly growing attention. In this seminar there will be given brief introduction to non-Hermitian models and their physical relevance, with special emphasis on the interplay of the PT symmetry and nonlinearity. The presentation includes brief introduction, devoted to the main concepts of non-Hermitian physics and its applications; overview of the results on nonlinear discrete PT-symmetric optics; and description of solitons and nonlinear modes in non-Hermitian potentials.
