Pseudo PT symmetric lattice
EUROPEAN PHYSICAL JOURNAL D, vol.69, no.1, 2015 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 69 Issue: 1
- Publication Date: 2015
- Doi Number: 10.1140/epjd/e2014-50652-x
- Journal Name: EUROPEAN PHYSICAL JOURNAL D
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Anadolu University Affiliated: No
Abstract
We study pseudo PT symmetry for a tight binding lattice with a general form of the modulation. Using high-frequency Floquet method, we show that the critical non-Hermitian degree for the reality of the spectrum can be manipulated by varying the parameters of the modulation. We study the effect of periodical and quasi-periodical nature of the modulation on the pseudo PT symmetry.