Skin effect in non-Hermitian subwavelength resonator systems
  1. Perturbed block Toeplitz matrices and the non-Hermitian skin effect in dimer systems of subwavelength resonators
    Habib Ammari, Silvio Barandun, Ping Liu*, submitted to Journal de Mathematiques Pures et Appliquees.
  2. Stability of the non-Hermitian skin effect
    Habib Ammari, Silvio Barandun, Bryn Davies, Erik Orvehed Hiltunen, Ping Liu*, submitted to SIAM on Applied Mathematics.
  3. The non-Hermitian skin effect with three-dimensional long-range coupling
    Habib Ammari, Silvio Barandun, Jinghao Cao*, Bryn Davies, Erik Orvehed Hiltunen, Ping Liu,submitted to Journal of the European Mathematical Society.
  4. Spectra and pseudo-spectra theory of tridiagonal k-Toeplitz operators and the topological origin of the non-Hermitian skin effect
    Habib Ammari, Silvio Barandun, Yannick De Bruijn, Ping Liu*, Clemens Thalhammer, 2024.
  5. Tunable Localisation in Parity-Time-Symmetric Resonator Arrays with Imaginary Gauge Potential
    Habib Ammari, Silvio Barandun, Ping Liu, Alexander Uhlmann*, 2024.

Interface modes in Hermitian subwavelength resonator systems
  1. Exponentially localised interface eigenmodes in finite chains of resonators
    Habib Ammari, Silvio Barandun, Bryn Davies, Erik Orvehed Hiltunen, Thea Kosche, Ping Liu*