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Wannier functions from non-bloch bands of 1D non-Hermitian photonic systems

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By PIYALI BISWAS, Heejin Choi, Chang-Won Lee
| Nature Verified
Abstract Non-Hermiticity profoundly alters wave function behavior in photonic systems due to finite size effects and open boundary conditions (OBC). A primary consequence is the emergence of non-Hermitian skin modes, which fundamentally redefine the system’s response. We apply non-Bloch theory to formulate Wannier functions (WFs) and to describe non-Hermitian photonic structures explicitly.
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