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|Title:||Luttinger Liquid Superlattices|
Dos Santos R.R.
|Abstract:||We calculate the correlation functions and the dc conductivity of Luttinger liquid superlattices, modelled by a repeated pattern of interacting and free Luttinger liquids. In a specific realization, where the interacting subsystem is a Hubbard chain, the system exhibits a rich phase diagram with four different phases: two metals and two compressible insulators. In general, we find that the effective low-energy description amalgamates features of both types of liquids in proportion to their spatial extent, suggesting the interesting possibility of 'engineered' Luttinger liquids.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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