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5 papers · 1 filter
Can non-private channels transmit quantum information?
Graeme Smith, John Smolin
We study the power of quantum channels with little or no capacity for private communication. Because privacy is a necessary condition for quantum communication, one might expect th…
Conductance Quantization in Graphene Nanoribbons
Yu-Ming Lin, Vasili Perebeinos, Zhihong Chen +1
We report the experimental observation of conductance quantization in graphene nanoribbons, where 1D transport subbands are formed due to the lateral quantum confinement. We show t…
Phonon and Electronic Non-radiative Decay of Excitons in Carbon Nanotubes
Vasili Perebeinos, Phaedon Avouris
We investigate theoretically the rates of non-radiative decay of excited semiconducting nanotubes by a variety of decay mechanisms and compare with experimental findings. We find t…
Magneto-spectroscopy of Highly-Aligned Carbon Nanotubes: Identifying the Role of Threading Magnetic Flux
J. Shaver, S. A. Crooker, J. A. Fagan +6
We have investigated excitons in highly-aligned single-walled carbon nanotubes (SWCNTs) through optical spectroscopy at low temperature (1.5 K) and high magnetic fields ($\textbf{\…
Strong Suppression of Electrical Noise in Bilayer Graphene Nano Devices
Yu-Ming Lin, Phaedon Avouris
Low-frequency 1/f noise is ubiquitous, and dominates the signal-to-noise performance in nanodevices. Here we investigate the noise characteristics of single-layer and bilayer graph…