Tunneling through a barrier in a Tomonaga-Luttinger liquid connected to reservoirs
- 15 August 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 54 (8) , R5239-R5242
- https://doi.org/10.1103/physrevb.54.r5239
Abstract
The transport through a barrier is studied for a Tomonaga-Luttinger liquid of finite length connected to reservoirs. An effective action for the phase variable at the barrier is derived for spatially varying electric field. In the dc limit only the total voltage drop between the left and right reservoirs appears in the action. We discuss crossovers of the renormalization group flow and hence of the temperature and wire length dependence of the conductance, taking into account the location of the barrier.Keywords
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