Year: 2014
Type: article
Abstract: The spectral and localization properties of -symmetric optical superlattices, either infinitely extended or truncated at one side, are theoretically investigated, and the criteria that ensure a real energy spectrum are derived. The analysis is applied to the case of superlattices describing a complex ( -symmetric) extension of the Harper Hamiltonian in the rational case.
Author: Stefano Longhi
Institutions: Istituto di Fotonica e Nanotecnologie, Politecnico di Milano
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1637320810