Doping induced spinless collective excitations of charge 2e in doped Mott insulators

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dc.creatorLiu, W. Vincent
dc.date2000-10-29
dc.date.accessioned2026-07-07T02:39:11Z
dc.date.available2026-07-07T02:39:11Z
dc.descriptionBased on the Hubbard model description of the doped Mott insulator, we prove that there must exist a spinless collective excitation of charge $2e$ and of energy $U-2μ$ peaked at momentum $(π/a,π/a)$ in the non-superconducting state due to doping. Such a collective excitation arises from the electron pair correlation. Its existence is related to the breakdown of an approximate SU(2) particle-hole symmetry, from which an effective field theory of the new excitations is constructed.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0010470
dc.identifierhttp://arxiv.org/abs/cond-mat/0010470
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16951
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleDoping induced spinless collective excitations of charge 2e in doped Mott insulators
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