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.

Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes / Rosati, Roberto; Dolcini, Fabrizio; Rossi, Fausto. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 106:24(2015), p. 243101. [10.1063/1.4922739]

Dispersionless propagation of electron wavepackets in single-walled carbon nanotubes

ROSATI, ROBERTO;DOLCINI, FABRIZIO;ROSSI, FAUSTO
2015

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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2614484
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