Transmission coefficient (a) and backward scattering phase (b) as a function of chiral angle at different values of potential strength U0: the solid curve corresponds to , the dashed curve, to .
Persistent current as a function of magnetic flux for different values of the chiral angle near the off-resonance point ; and results in (this integer represents the 20-th off-resonance point counted from in ): the solid curve corresponds to , the dashed curve to .
The Josephson current (in units of ) in a long junction, ; the solid curves correspond to the chiral resonance and two off-resonance cases and (symmetric junction); the corresponding currents in an asymmetric junction are represented by the dashed curves.
The distribution of the number of energy levels over the level spacing (normalized by ) for and different chiral angles: to (a), (b), (c), and (d). For the armchair nanotube we have two sets of equidistant energy levels: and 0.36. The distribution for and is shown here.
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