For distribution

[CM ICTP - Trieste]

Seminar on Disorder and strong electron correlations





Thursday, 6 November      -  11:00 a.m.





Seminar Room,  Leonardo Bldg.- first floor





D. GUTMAN   ( Karlsruhe University )



" Non-equilibrium Luttinger liquid:Zero-bias anomaly and dephasing"



Abstract



A one-dimensional system of interacting electrons out of equilibrium  
is studied in the framework of the Luttinger liquid model. We analyze  
several setups and develop a theory of tunneling into such systems.   
A remarkable property of the problem is the absence of relaxation in  
energy distribution functions of left- and right-movers, yet the  
presence of the finite dephasing rate due to electron-electron  
scattering, which smears zero-bias-anomaly singularities in the  
tunneling density.