Evading Anderson localization in a one-dimensional conductor with correlated disorder
| Autor: | Richard Montgomery, Harsh Mathur, Onuttom Narayan |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Anderson localization Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics FOS: Physical sciences 02 engineering and technology State (functional analysis) 021001 nanoscience & nanotechnology 01 natural sciences Resonance (particle physics) Condensed Matter::Disordered Systems and Neural Networks Symmetry (physics) Conductor Delocalized electron 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Light filter Limit (mathematics) 010306 general physics 0210 nano-technology |
| DOI: | 10.48550/arxiv.2007.00206 |
| Popis: | We show that a one-dimensional disordered conductor with correlated disorder has an extended state and a Landauer resistance that is nonzero in the limit of infinite system size in contrast to the predictions of the scaling theory of Anderson localization. The delocalization transition is not related to any underlying symmetry of the model such as particle-hole symmetry. Moreover, the form of correlated disorder considered here is distinct from other models with delocalization transitions that have been considered in the literature. For a wire of finite length the effect manifests as a sharp transmission resonance that narrows as the length of the wire is increased. Experimental realizations and applications are discussed including the possibility of constructing a narrow-band light filter. |
| Databáze: | OpenAIRE |
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