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Phys Rev Lett. 2000 Feb 21;84(8):1764-7.

Experimental evidence for resonant tunneling in a luttinger liquid

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Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot 76100, Israel.


We have measured the low-temperature conductance of a one-dimensional island embedded in a single mode quantum wire. The quantum wire is fabricated using the cleaved edge overgrowth technique and the tunneling is through a single state of the island. Our results show that while the resonance line shape fits the derivative of the Fermi function the intrinsic linewidth decreases in a power law fashion as the temperature is reduced. This behavior agrees quantitatively with Furusaki's model for resonant tunneling in a Luttinger liquid.

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