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quant-ph2023
Characterizing the topological properties of one-dimensional non-hermitian systems without the Berry-Zak phase
Didier Felbacq, Emmanuel Rousseau
A new method is proposed to predict the topological properties of one-dimensional periodic structures in wave physics, including quantum mechanics. From Bloch waves, a unique compl…
math-ph2023★ 1 cited
A single layer representation of the scattered field for multiple scattering problems
Didier Felbacq, Anthony Gourdin, Emmanuel Rousseau
The scattering of scalar waves by a set of scatterers is considered. It is proven that the scattered field can be represented as an integral supported by any smooth surface enclosi…