Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes

Abstract

We investigate the propagation of electron wavepackets in single-walled carbon nanotubes via a Lindblad-based density-matrix approach that enables us to account for both dissipation and decoherence effects induced by various phonon modes. We show that, while in semiconducting nanotubes the wavepacket experiences the typical dispersion of conventional materials, in metallic nanotubes its shape remains essentially unaltered, even in the presence of the electron-phonon coupling, up to micron distances at room temperature.

arXiv comment4 pages, 2 figures, accepted by Appl. Phys. Lett

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Cited by in corpus (6)

• Photoexcitation of electron wave packets in quantum spin Hall edge states: effects of chiral anomaly from a localised electric pulse
• Electron-phonon coupling in metallic carbon nanotubes: Dispersionless electron propagation despite dissipation
• Lindblad approach to spatio-temporal quantum dynamics of phonon-induced carrier capture processes
• Spatial control of carrier capture in two-dimensional materials: Beyond energy selection rules
• Photoexcitation in two-dimensional topological insulators: Generating and controlling electron wavepackets in Quantum Spin Hall systems
• Two dimensional semiconductors: optical and electronic properties