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Effective Hamiltonian of the Two-band Hubbard Model: An Exact Result

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dc.contributor.authorChan, R
dc.contributor.authorGulacsi, Miklos
dc.date.accessioned2015-12-13T23:23:41Z
dc.date.issued2002
dc.date.updated2015-12-12T09:17:12Z
dc.description.abstractAn effective Hamiltonian for the two-band Hubbard model was derived by a canonical transformation which was calculated and summed up to infinite order. The transformed Hamiltonian contains terms with strongly renormalized interaction energies. These new interaction energies show sign reversals as a function of the hopping integral in addition to a strong reduction in the charge-transfer gap and a significant increase in the attractive oxygen Hubbard term.
dc.identifier.issn0950-0839
dc.identifier.urihttp://hdl.handle.net/1885/91882
dc.publisherTaylor & Francis Group
dc.sourcePhilosophical Magazine Letters
dc.subjectKeywords: Calculations; Copper oxides; Hamiltonians; Mathematical models; Mathematical transformations; Oxide superconductors; Charge-transfer gap; Infinite order; Two-band Hubbard model; Perturbation techniques
dc.titleEffective Hamiltonian of the Two-band Hubbard Model: An Exact Result
dc.typeJournal article
local.bibliographicCitation.issue12
local.bibliographicCitation.lastpage680
local.bibliographicCitation.startpage671
local.contributor.affiliationChan, R, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationGulacsi, Miklos, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidChan, R, u880768
local.contributor.authoruidGulacsi, Miklos, u9509706
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor010501 - Algebraic Structures in Mathematical Physics
local.identifier.ariespublicationMigratedxPub22792
local.identifier.citationvolume82
local.identifier.doi10.1080/0950083021000036670
local.identifier.scopusID2-s2.0-0036926434
local.type.statusPublished Version

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