Transport in double-crossed Luttinger liquids

Durganandini, P. ; Rao, Sumathi (1999) Transport in double-crossed Luttinger liquids Physical Review B: Condensed Matter and Materials Physics, 59 (20). pp. 13122-13125. ISSN 2469-9950

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We study transport through two Luttinger liquids (one-dimensional electrons interacting through a Coulomb repulsion in a metal) coupled together at two points. External voltage biases are incorporated through boundary conditions. We include density-density couplings as well as single-particle hops at the contacts. For weak repulsive interactions, transport through the wires remains undisturbed by the interwire couplings, which renormalize to zero. For strong repulsive interactions, the interwire couplings become strong. For symmetric barriers and no external voltage bias, a single gate voltage is sufficient to tune for resonance transmission in both wires. However, for asymmetric couplings or for finite external biases, the system is insulating.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:109522
Deposited On:01 Feb 2018 09:23
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