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Interwire element of an impurity spectral function in coupled asymmetric quantum wires |
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| Authors: | Marcos R. S. Tavares G. -Q. Hai G. E. Marques |
| Affiliation: | a Faculdade de Tecnologia da Baixada Santista, CEETPS, Santos SP 11045-908, Brazil;b Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos SP 13560-970, Brazil;c Departamento de Física, Universidade Federal de São Carlos, São Carlos SP 13565-905, Brazil |
| Abstract: | We calculate the interwire element of the impurity spectral function in coupled double quantum wires at finite temperatures. Simple anisotropy in the direction perpendicular to the wires gives rise to this element, which is responsible for tunneling-induced effects. We find interwire particle–hole (single-particle) excitations contributing to the total impurity spectral function for temperatures up to 20 K. |
| Keywords: | Author Keywords: Luttinger liquid Elementary excitations Impurity spectral function |
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