Multi-orbital tight binding model for cavity-polariton lattices. (11th May 2020)

• Record Type: Journal Article
• Authors: Mangussi, Franco; Milićević, Marijana; Sagnes, Isabelle; Gratiet, Luc Le; Harouri, Abdelmounaim; Lemaître, Aristide; Bloch, Jacqueline; Amo, Alberto; Usaj, Gonzalo
• Is Part Of: Journal of physics. Volume 32:Number 31(2020)
• Publication Date: 2020-05-11
• Subjects: cavity polariton -- photonic system -- synthetic spin orbit coupling -- multi-orbital polariton lattices -- synthetic Hamiltonian systems; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/ab8524
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: In this work we present a tight-binding model that allows to describe with a minimal amount of parameters the band structure of exciton-polariton lattices. This model based on s and p non-orthogonal photonic orbitals faithfully reproduces experimental results reported for polariton graphene ribbons. We analyze in particular the influence of the non-orthogonality, the inter-orbitals interaction and the photonic spin–orbit coupling on the polarization and dispersion of bulk bands and edge states.