Exciton Bose-Einstein Condensation in Double Walled Carbon Nanotubes. (15th June 2017)

• Record Type: Journal Article
• Authors: Bondarev, Igor V.; Popescu, Adrian
• Is Part Of: MRS advances. Volume 2:Number 44(2017)
• Page Start: 2401
• Page End: 2406
• Publication Date: 2017-06-15
• Subjects: nanoscale, -- nanostructure, -- optical properties; Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/adv.2017.435
• Languages: English
• ISSNs: 2059-8521

Abstract

ABSTRACT: We demonstrate theoretically the possibility for the Bose-Einstein condensation of excitons in properly selected double walled carbon nanotube structures. The condensation mechanism is enabled by the interaction of excitons residing on one tubule with the near-field generated by the plasmon mode of the other coaxial tubule, resulting in new hybridized bosonic quasiparticles called exciton-plasmons. We derive the dispersion relation for the exciton-plasmons, and calculate the exciton participation rate in the exciton-plasmon condensate. The requirements for forming the appropriate double walled carbon nanotube combinations capable of the optimum exciton-plasmon coupling regime needed to realize the condensation effect, as well as the possibility of experimental observation of the phenomenon, are discussed.