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Incoherent scatterer in a Luttinger liquid: a new paradigmatic limit | | Alexander Altland
; Yuval Gefen
; Bernd Rosenow
; | | Date: |
15 Apr 2011 | | Abstract: | We address the problem of a Luttinger liquid with a scatterer that allows for
both coherent and incoherent scattering channels. The asymptotic behavior at
zero temperature is governed by a new stable fixed point: a Goldstone mode
dominates the low energy dynamics, leading to a universal behavior. This limit
is marked by equal probabilities for forward and backward scattering.
Notwithstanding this non-trivial scattering pattern, we find that the shot
noise as well as zero cross-current correlations vanish. We thus present a
paradigmatic picture of an impurity in the Luttinger model, alternative to the
Kane-Fisher picture. | | Source: | arXiv, 1104.3125 | | Services: | Forum | Review | PDF | Favorites | |
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