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Quantum transport through carbon nanotubes near a conducting plate: Vacuum fluctuations and Decoherence

P.G. Gabrielli and S. Gabrielli
ENEA, IT

Keywords:
quantum transport, carbon nanotube

Abstract:
The process of environmental decoherence is seen to occur when we include the quantum dynamics of a system and its environment: the innovative idea is that environmental degrees of freedom are relevant even though the coupling to them is only weak. The effect of vacuum fluctuations on electron coherence is known: the time-varying electromagnetic field produces a time-varying Aharonov-Bohm phase.
It is well known that a conducting boundary modifies the properties of the zero-point fluctuations and therefore could affect the charge particles transport properties in a carbon nanotube that interact with a time-varying electromagnetic field.
We shall go to discuss a situation in which a quantum-mechanical system, the ballistic electrons in nanotube, is disturbed not just by a classical system but another quantum-mechanical system, the vacuum fluctuations due to conducting plate, about which there are statistical uncertainties.

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