Coulomb drag between one-dimensional conductors

Abstract

We have analyzed Coulomb drag between currents of interacting electrons in two parallel one-dimensional conductors of finite length $L$ attached to external reservoirs. For strong coupling, the relative fluctuations of electron density in the conductors acquire energy gap $M$. At energies larger than $\Gamma =const\times v_{-}\exp (-LM/v_{-})/L+{\Gamma }_{+}$, where ${\Gamma }_{+}$ is the impurity scattering rate, and for $L>v_{-}/M$, where $v_{-}$ is the fluctuation velocity, the gap leads to an ``ideal'' drag with almost equal currents in the conductors. At low energies the drag is suppressed by coherent instanton tunneling, and the zero-temperature transconductance vanishes, indicating the Fermi liquid behavior.

5 twocolumn pages in RevTex, added 1 eps-Figure and calculation of trans-resistance

References in corpus (6)

• Current drag in capacitevly coupled Luttinger constrictions
• Coulomb drag of Luttinger liquids and quantum-Hall edges
• Nonequilibrium transport for crossed Luttinger liquids
• Transport through a 1D Mott-Hubbard insulator of finite length
• Effects of Coulomb interaction and tunneling on electron transport in coupled one-dimensional systems: from ballistic to diffusive regime
• Fractional charge in transport through a 1D correlated insulator of finite length

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• Mesoscopic fluctuations of Coulomb drag between quasi-ballistic 1D-wires
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• Temperature dependence of Coulomb drag between finite-length quantum wires
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• Exciton Quasi-Condensation in One Dimensional Systems
• Ultranarrow resonance in Coulomb drag between quantum wires at coinciding densities
• Indistinguishability of quantum states and rotation counting
• Electron transport in parallel quantum wires with random potentials