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quant-ph2024
On the non-hermitian Kitaev chain
Eddy Ardonne, Viktor Kurasov
We study the non-hermitian Kitaev chain model, for arbitrary complex parameters. In particular, we give a concise characterisation of the curves of eigenvalues in the complex plane…
quant-ph2022★ 47 cited
Sensitivity of non-Hermitian systems
Elisabet Edvardsson, Eddy Ardonne
Understanding the extreme sensitivity of the eigenvalues of non-Hermitian Hamiltonians to the boundary conditions is of great importance when analyzing non-Hermitian systems, as it…