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Emergence, coalescence, and topological properties of multiple exceptional points and their experimental realization

  • 发布时间:2020-05-16
  • 点击次数:
  • 发表刊物:Physical Review X
  • 摘要:Non-Hermitian systems distinguish themselves from Hermitian systems by exhibiting a phase transition point called an exceptional point (EP), at which two eigenstates coalesce under a system parameter variation. Many interesting EP phenomena, such as level crossings in nuclear and condensed matter physics, and unusual phenomena in optics, such as loss-induced lasing and unidirectional transmission, can be understood by considering a simple 2× 2 non-Hermitian matrix. At a higher dimension, more complex EP physics not found in two-state systems arises. We consider the emergence and interaction …
  • 论文类型:期刊论文
  • 卷号:6
  • 期号:2
  • 页面范围:021007
  • 是否译文:
  • 发表时间:2016

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