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Resonant Multi-Lead Point-Contact Tunneling
C. Nayak, Matthew P. A. Fisher, A. W. W. Ludwig +1
We analyze a model of resonant point-contact tunneling between multiple Luttinger liquid leads. The model is a variant of the multi-channel Kondo model and can be related to the qu…
Coulomb Interactions and Mesoscopic Effects in Carbon Nanotubes
Charlie Kane, Leon Balents, Matthew Fisher
We argue that long-range Coulomb forces convert an isolated (N,N) armchair carbon nanotube into a strongly-renormalized *Luttinger liquid*. At high temperatures, we find anomalous…
Transport of Surface States in the Bulk Quantum Hall Effect
Sora Cho, Leon Balents, Matthew P. A. Fisher
The two-dimensional surface of a coupled multilayer integer quantum Hall system consists of an anisotropic chiral metal. This unusual metal is characterized by ballistic motion tra…
Delocalization Transition via Supersymmetry in one Dimension
Leon Balents, Matthew P. A. Fisher
We use supersymmetric (SUSY) methods to study the delocalization transition at zero energy in a one-dimensional tight-binding model of spinless fermions with particle-hole symmetri…
The N-chain Hubbard Model in Weak Coupling
Hsiu-Hau Lin, Leon Balents, Matthew P. A. Fisher
We present a systematic weak-coupling renormalization group (RG) technique for studying a collection of coupled one-dimensional interacting electron systems, focusing on the ex…