Rectification in Luttinger liquids

Details Rectification in Luttinger liquids Rectification in Luttinger liquids

2004-10-04

arxiv.org/abs/cond-mat/0410089v2

Phys. Rev. Lett. 94, 186809 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, Revtex

Scientific paper

10.1103/PhysRevLett.94.186809

We investigate the rectification of an ac bias in Luttinger liquids in the presence of an asymmetric potential (the ratchet effect). We show that strong repulsive electron interaction enhances the ratchet current in comparison with Fermi liquid systems, and the I-V curve is strongly asymmetric in the low-voltage regime even for a weak asymmetric potential. At higher voltages the ratchet current exhibits an oscillatory voltage dependence.

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