厄米矩阵
物理
拓扑(电路)
相变
激光器
相(物质)
低语长廊波浪
量子力学
光学
凝聚态物理
数学
组合数学
出处
期刊:Optics Letters
[The Optical Society]
日期:2019-02-25
卷期号:44 (5): 1190-1190
被引量:28
摘要
The delocalization transition in the Anderson model in the presence of an imaginary gauge field is a landmark example of non-Hermitian topological phase transition. Originally proposed by Hatano and Nelson, its topological nature has been disclosed only very recently. Here it shown that a non-Hermitian phase transition can be observed in the frequency domain of an actively mode-locked laser in a parity-time (PT)-symmetric configuration with incommensurate spacing of cavity axial frequencies.
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