Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes

Roberto Rosati; Fabrizio Dolcini; Fausto Rossi

doi:10.1063/1.4922739

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arXiv · 1505.03013

Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes

Roberto Rosati·Fabrizio Dolcini·Fausto Rossi

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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.

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Roberto Rosati, Fabrizio Dolcini, Fausto Rossi. 2015-05-12. Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes. https://doi.org/10.1063/1.4922739

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