Issue
EPL
Volume 82, Number 1, April 2008
Article Number 17008
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI http://dx.doi.org/10.1209/0295-5075/82/17008
Published online 12 March 2008
EPL, 82 (2008) 17008
DOI: 10.1209/0295-5075/82/17008

Tunneling into strongly biased Tomonaga-Luttinger liquid

M. Trushin1, 2 and A. L. Chudnovskiy1

1  1. Institut für Theoretische Physik, Universität Hamburg - Jungiusstr 9, D-20355 Hamburg, Germany, EU
2  1. Institut für Theoretische Physik, Universität Regensburg - D-93040 Regensburg, Germany, EU

achudov@physnet.uni-hamburg.de

received 25 October 2007; accepted in final form 15 February 2008; published April 2008
published online 12 March 2008

Abstract
We calculate the tunneling density of states for a Tomonaga-Luttinger liquid placed under a strong bias voltage. For the tunneling through a side-coupled point contact, one can observe the power law singularities in the tunneling density of states separately for the right- and left-movers despite the point-like tunnel contact. The calculated nonequilibrium tunneling exponents differ strongly from the equilibrium case.

PACS
71.10.Pm - Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.).

© EPLA 2008