Exact Nonequilibrium dc Shot Noise in Luttinger Liquids and Fractional Quantum Hall Devices
Sep 11, 1995
3 pages
Published in:
- Phys.Rev.Lett. 75 (1995) 2196-2199
e-Print:
- cond-mat/9505031 [cond-mat]
Report number:
- USC-95-011
Citations per year
Abstract: (APS)
A point contact in a Luttinger liquid couples left- and right-moving channels, producing shot noise. We calculate exactly the dc shot noise at zero temperature in the out-of-equilibrium steady state where current is flowing. Integrability ensures the existence of a quasiparticle basis where scattering is “one by one” off the point contact, enabling us to generalize the Landauer approach to shot noise to this interacting model. Experiments in a fractional quantum Hall effect device should test our results, providing a clear signal of the fractional charge of the Laughlin quasiparticles.Note:
- 4 pages in revtex two-column, one figure.
- 73.40.Hm
References(24)
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