Gianaurelio Cuniberti et al 1996 J. Phys.: Condens. Matter 8 L21 doi:10.1088/0953-8984/8/2/002
Transport and elementary excitations of a Luttinger liquid
Gianaurelio Cuniberti
, Maura Sassetti
and Bernhard Kramer§
LETTER TO THE EDITOR
The low-temperature AC conductance of a one-dimensional electron system with a strong interaction of finite range is calculated by using linear response theory. The conductance factorizes into parts which depend on the internal properties of the system, and the external probe. For short-range interaction, the result resembles that for non-interacting electrons, but with the zero-frequency limit and the Fermi velocity renormalized by the interaction strength. For strong and long-range interaction, the conductance shows a peak that is related to charge-wave excitations. In this limit, the AC conductance can be simulated by a quantum capacitance and a quantum inductance.
- PACS
-
71.10.Pm Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.)
71.45.Gm Exchange, correlation, dielectric and magnetic response functions, plasmons
- Subjects
- Dates
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Issue 2 (8 January 1996)
Received 10 November 1995
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Transport and elementary excitations of a Luttinger liquid
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