Exact Solution and Large-Scale Scaling Analysis of the Imaginary Creutz–Stark Ladder

We present an analytical solution for the complex spectrum of a Creutz ladder subject to an imaginary Stark potential. By mapping the system to a momentum-space differential equation, we derive the closed-form solution for the momentum-space wavefunctions. We identify a distinct cross-shaped spectru...

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Detalhes bibliográficos

Principais autores:	Yunyao Qi, Heng Lin, Quanfeng Lu, Dan Long, Dong Ruan, Gui-Lu Long
Formato:	Artigo
Idioma:	Inglês
Publicado em:	MDPI AG 2026-02-01
coleção:	Entropy
Assuntos:	non-Hermitian physics Wannier–Stark localization Creutz ladder imaginary stark skin effect analytical solution finite-size scaling
Acesso em linha:	https://www.mdpi.com/1099-4300/28/3/259
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