• On the concept of spectral singularities

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      https://www.ias.ac.in/article/fulltext/pram/073/03/0587-0603

    • Keywords

       

      Non-Hermitian Hamiltonian; resolvent; spectrum; spectral singularity; expansion in eigenfunctions.

    • Abstract

       

      In this paper, we discuss the concept of spectral singularities for non-Hermitian Hamiltonians. We exihibit spectral singularities of some well-known concrete Hamiltonians with complex-valued coefficients.

    • Author Affiliations

       

      Gusein Sh Guseinov1

      1. Department of Mathematics, Atilim University, 06836 Incek, Ankara, Turkey
    • Dates

       
  • Pramana – Journal of Physics | News

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