Correlation effects for semiconducting single wall carbon nanotube: a density matrix renormalization group study

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dc.creatorYe, Fei
dc.creatorWang, Bing-Shen
dc.creatorLou, JiZhong
dc.creatorSu, Zhao-Bin
dc.date2005-03-31
dc.date2006-01-12
dc.date.accessioned2026-07-07T06:37:37Z
dc.date.available2026-07-07T06:37:37Z
dc.descriptionIn this paper, we report the applicability of the density matrix renormalization group(DMRG) approach to the cylindrical single wall carbon nanotube (SWCN) for purpose of its correlation effect. By applying the DMRG approach to the $t$+$U$+$V$ model, with $t$ and $V$ being the hopping and Coulomb energies between the nearest neighboring sites, respectively, and $U$ the onsite Coulomb energy, we calculate the phase diagram for the SWCN with chiral numbers ($n_{1}=3, n_{2}=2$), which reflects the competition between the correlation energy $U$ and $V$. Within reasonable parameter ranges, we investigate possible correlated groundstates, the lowest excitations and the corresponding correlation functions in which the connection with the excitonic insulator is particularly addressed.
dc.description1 source files, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0503731
dc.identifierhttp://arxiv.org/abs/cond-mat/0503731
dc.identifierPHYSICAL REVIEW B 72, 233409 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.233409
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/100457
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleCorrelation effects for semiconducting single wall carbon nanotube: a density matrix renormalization group study
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