Meng, T. and Fritz, L. and Schuricht, D. and Loss, D.. (2014) Low-energy properties of fractional helical Luttinger liquids. Physical review. B, Condensed matter and materials physics, Vol. 89, H. 4 , 5111.
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Official URL: http://edoc.unibas.ch/dok/A6348183
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Abstract
We investigate the low-energy properties of (quasi) helical and fractional helical Luttinger liquids. In particular, we calculate the Drude peak of the optical conductivity, the density of states, as well as charge transport properties of the interacting system with and without attached Fermi liquid leads at small and large (compared to the gap) frequencies. For fractional wires, we find that the low-energy tunneling density of states vanishes. The conductance of a fractional helical Luttinger liquid is noninteger. It is independent of the Luttinger parameters in the wire, despite the intricate mixing of charge and spin degrees of freedom, and only depends on the relative locking of charge and spin degrees of freedom.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss) |
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UniBasel Contributors: | Loss, Daniel |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | American Institute of Physics |
ISSN: | 0163-1829 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
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Identification Number: | |
Last Modified: | 06 Mar 2015 07:44 |
Deposited On: | 06 Mar 2015 07:44 |
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