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Shot noise free conductance reduction in quantum wires

M. Kindermann·P. W. Brouwer
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Abstract

We show that a shot noise free current at conductance below 2 e^2/h is possible in short interacting quantum wires without spin-polarization. Our calculation is done for two exactly solvable limits of the ``Coulomb Tonks gas'', a one-dimensional gas of impenetrable electrons that can be realized in ultra-thin quantum wires. In both cases we find that charge transport through such a wire is noiseless at zero temperature while the conductance is reduced to e^2/h.

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M. Kindermann, P. W. Brouwer. 2005-06-17. Shot noise free conductance reduction in quantum wires. https://doi.org/10.1103/physrevb.74.125309

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