Tunneling spectroscopy of Luttinger-liquid structures far from equilibrium

Details Tunneling spectroscopy of Luttinger-liquid structures far from equilibrium Tunneling spectroscopy of Luttinger-liquid structures far from equilibrium

2009-03-19

arxiv.org/abs/0903.3333v1

Phys. Rev. B 80, 045106 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 4 figures

Scientific paper

10.1103/PhysRevB.80.045106

We develop a theory of tunneling spectroscopy of interacting electrons in a non-equilibrium quantum wire coupled to reservoirs. The problem is modelled as an out-of-equilibrium Luttinger liquid with spatially dependent interaction. The interaction leads to the renormalization of the tunneling density of states, as well as to the redistribution of electrons over energies. Energy relaxation is controlled by plasmon scattering at the boundaries between regions with different interaction strength, and affects the distribution function of electrons in the wire as well as that of electrons emitted from the interacting regions into non-interacting electrodes.

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