Tunnel density of states in a Luttinger constriction
We study Luttinger constriction that is a finite region of interacting electrons adiabatically connected to the reservoirs of non-interacting electrons. We have shown that, in contrast to an infinite Luttinger liquid, the density of states (DOS) remains finite at the Fermi surface although it is str...
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Published in | Europhysics letters Vol. 37; no. 3; pp. 213 - 218 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
20.01.1997
EDP Sciences |
Subjects | |
Online Access | Get full text |
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Summary: | We study Luttinger constriction that is a finite region of interacting electrons adiabatically connected to the reservoirs of non-interacting electrons. We have shown that, in contrast to an infinite Luttinger liquid, the density of states (DOS) remains finite at the Fermi surface although it is strongly suppressed in comparison with the non-interacting value. The finite-size effects give rise to an additional staircase structure in the energy dependence of the DOS at higher energies. |
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Bibliography: | istex:F76F22E3A326FE410C18C62FC290DE5D4B5949C9 publisher-ID:37310 ark:/67375/80W-NS695XC1-L |
ISSN: | 0295-5075 1286-4854 |
DOI: | 10.1209/epl/i1997-00133-6 |