Entangled two-plasmon generation in carbon nanotubes and graphene-coated wires

Muniz, Y. ; Abrantes, P. P. ; Martín-Moreno, L. ; Pinheiro, F. A. ; Farina, C. ; Kort-Kamp, W.

Resumen: We investigate the two-plasmon spontaneous decay of a quantum emitter near single-walled carbon nanotubes (SWCNTs) and graphene-coated wires (GCWs). We demonstrate efficient, enhanced generation of two-plasmon entangled states in SWCNTs due to the strong coupling between tunable guided plasmons and the quantum emitter. We predict two-plasmon emission rates more than twelve orders of magnitude higher than in free space, with average lifetimes of a few dozen nanoseconds. Given their low dimensionality, these systems could be more efficient for generating and detecting entangled plasmons in comparison to extended graphene. Indeed, we achieve a tunable spectrum of emission in GCWs, where sharp resonances occur precisely at the plasmons'' minimum excitation frequencies. We show that by changing the material properties of the GCW''s dielectric core, one could tailor the dominant modes and frequencies of the emitted entangled plasmons while keeping the decay rate ten orders of magnitude higher than in free space. By unveiling the unique properties of two-plasmon spontaneous emission processes in the presence of low-dimensional carbon-based nanomaterials, our findings set the basis for a novel material platform with applications to on-chip quantum information technologies. © 2022 American Physical Society.

Idioma: Inglés

DOI: 10.1103/PhysRevB.105.165412

Año: 2022

Publicado en: Physical Review B 105, 16 (2022), 165412
ISSN: 2469-9950

Factor impacto JCR: 3.7 (2022)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 157 / 343 = 0.458 (2022) - Q2 - T2
Categ. JCR: PHYSICS, CONDENSED MATTER rank: 24 / 67 = 0.358 (2022) - Q2 - T2
Categ. JCR: PHYSICS, APPLIED rank: 50 / 160 = 0.312 (2022) - Q2 - T1

Factor impacto CITESCORE: 6.7 - Physics and Astronomy (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 1.468 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/Q-503 MAD
Financiación: info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2020-115221GB-C41

Tipo y forma: Article (Published version)