ISSN:
1434-6036
Keywords:
PACS. 71.27.+a Strongly correlated electron systems; heavy fermions - 73.20.Dx Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers) - 05.30.Fk Fermion systems and electron gas
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We consider a one-dimensional electron system, suitable for the description of the electronic correlations in a metallic carbon nanotube. Renormalization group methods are used to study the low-energy behavior of the unscreened Coulomb interaction between currents of well-defined chirality. In the limit of a very large number n of subbands we find a strong renormalization of the Fermi velocity, reminiscent of a similar phenomenon in the graphite sheet. For small nor sufficiently low energy, the Luttinger liquid behavior takes over, with a strong wavefunction renormalization leading to a vanishing quasiparticle weight. Our approach is appropriate to study the crossover from two-dimensional to one-dimensional behavior in carbon nanotubes of large radius.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510070070
