Phenomenon of multiple reentrant localization in a double-stranded helix with transverse electric field

The present work explores the potential for observing multiple reentrant localization behavior in a double-stranded helical (DSH) system, extending beyond the conventional nearest-neighbor hopping (NNH) interaction. The DSH system is considered to have hopping dimerization in each strand, while also...

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Bibliographic Details
Published in:Scientific reports 2024-02, Vol.14 (1), p.3059-3059, Article 3059
Main Authors: Ganguly, Sudin, Sarkar, Suparna, Mondal, Kallol, Maiti, Santanu K.
Format: Article
Language:English
Subjects:
639/766/119
639/766/119/995
Dimerization
Electric fields
Humanities and Social Sciences
Localization
multidisciplinary
Nearest-neighbor
Science
Science (multidisciplinary)
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Summary:The present work explores the potential for observing multiple reentrant localization behavior in a double-stranded helical (DSH) system, extending beyond the conventional nearest-neighbor hopping (NNH) interaction. The DSH system is considered to have hopping dimerization in each strand, while also being subjected to a transverse electric field. The inclusion of an electric field serves the dual purpose of inducing quasi-periodic disorder and strand-wise staggered site energies. Two reentrant localization regions are identified: one exhibiting true extended behavior in the thermodynamic limit, while the second region shows quasi-extended characteristics with partial spreading within the helix. The DSH system exhibits three distinct single-particle mobility edges linked to localization transitions present in the system. The analysis in this study involves examining various parameters such as the single-particle energy spectrum, inverse participation ratio, local probability amplitude, and more. Our proposal, combining achievable hopping dimerization and induced correlated disorder, presents a unique opportunity to study phenomenon of reentrant localization, generating significant research interest.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-52579-2