Chiral Emission from Organic Color Centers in Carbon Nanotubes: A Theoretical Study

Le résumé fourni par la source

The quantized nature and orthogonality of left- and right-handed circular polarization states make photons ideal candidates as qubits for quantum technologies. However, generating chiral single photons often requires coupling a single-photon emitter to large-scale waveguides or applying strong magnetic fields to break symmetry and induce photon chirality. An ideal approach would be to achieve chiral emission directly from a molecular- or atomic-scale single-photon emitter with inherent structural or electronic asymmetry. In this study, we use time-dependent density functional theory to explore the potential for chiral photon emission from organic color centers (OCCs)—atomic-scale defects in single-walled carbon nanotube hosts that function as single-photon emitters. Our findings reveal that the precise positioning of OCCs on the nanotube surface can break symmetry and induce chirality in the emitted photons. We will discuss the conditions under which these defect color centers exhibit chiral emission, paving the way for scalable quantum photonics technologies.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.