Eigenvalue knots and their isotopic equivalence in three-state non-hermitian systems

HIGHLIGHTS

• who: Zhen Li from the DepartmentBaptist University, Kowloon Tong, Hong Kong, China have published the research: Eigenvalue knots and their isotopic equivalence in three-state non-Hermitian systems, in the Journal: (JOURNAL) of 19/04/2023
• what: By highlighting the role of branch cuts on the eigenvalue manifolds the authors show that eigenvalue knots produced by homotopic parametric loops are isotopic such that they can deform into one another by type-II or III Reidemeister moves. The authors focus on the second-order mode, whose pressure and velocity distributions are shown in Fig 4(c . . .
  

   

  

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