Topological phase in a non-Hermitian PT symmetric system
Physics Letters, Section A: General, Atomic and Solid State Physics, cilt.379, sa.18-19, ss.1213-1218, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 379 Sayı: 18-19
- Basım Tarihi: 2015
- Doi Numarası: 10.1016/j.physleta.2015.02.011
- Dergi Adı: Physics Letters, Section A: General, Atomic and Solid State Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1213-1218
- Anahtar Kelimeler: Non-Hermitian Hamiltonian, PT symmetry, Topological phase, REAL SPECTRA
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Anadolu Üniversitesi Adresli: Evet
Özet
© 2015 Elsevier B.V.All rights reserved.In this work, we consider a tight binding lattice with two non-Hermitian impurities. The system is described by a non-Hermitian generalization of the Aubry-Andre model. We show that there exists topologically nontrivial edge states for the system in the PT symmetric region.