{"_id":"XtPbqAhiY8Aho69ii","bibbaseid":"fehske-hager-jeckelmann-metallicityinthehalffilledholsteinhubbardmodel-2008","downloads":0,"creationDate":"2019-03-06T18:12:57.583Z","title":"Metallicity in the half-filled Holstein-Hubbard model","author_short":["Fehske, H.","Hager, G.","Jeckelmann, E."],"year":2008,"bibtype":"article","biburl":"https://bibbase.org/zotero/abiancon","bibdata":{"bibtype":"article","type":"article","title":"Metallicity in the half-filled Holstein-Hubbard model","url":"http://dx.doi.org/10.1209/0295-5075/84/57001","doi":"10.1209/0295-5075/84/57001","abstract":"We re-examine the Peierls insulator to Mott insulator transition scenario in the one-dimensional Holstein-Hubbard model where, at half-filling, electron-phonon and electron-electron interactions compete for establishing charge- and spin-density-wave states, respectively. By means of large-scale density-matrix renormalization group calculations we determine the spin, single-particle and two-particle excitation gaps and prove —in the course of a careful finite-size scaling analysis— recent claims for an intervening metallic phase in the weak-coupling regime. We show that for large phonon frequencies the metallic region is even more extended than previously expected, and subdivided into ordinary Luttinger-liquid and bipolaronic-liquid phases.","journal":"EPL (Europhysics Letters)","author":[{"propositions":[],"lastnames":["Fehske"],"firstnames":["H."],"suffixes":[]},{"propositions":[],"lastnames":["Hager"],"firstnames":["G."],"suffixes":[]},{"propositions":[],"lastnames":["Jeckelmann"],"firstnames":["E."],"suffixes":[]}],"year":"2008","keywords":"luttinger","pages":"57001+","bibtex":"@article{fehske_metallicity_2008,\n\ttitle = {Metallicity in the half-filled {Holstein}-{Hubbard} model},\n\turl = {http://dx.doi.org/10.1209/0295-5075/84/57001},\n\tdoi = {10.1209/0295-5075/84/57001},\n\tabstract = {We re-examine the Peierls insulator to Mott insulator transition scenario in the one-dimensional Holstein-Hubbard model where, at half-filling, electron-phonon and electron-electron interactions compete for establishing charge- and spin-density-wave states, respectively. By means of large-scale density-matrix renormalization group calculations we determine the spin, single-particle and two-particle excitation gaps and prove —in the course of a careful finite-size scaling analysis— recent claims for an intervening metallic phase in the weak-coupling regime. We show that for large phonon frequencies the metallic region is even more extended than previously expected, and subdivided into ordinary Luttinger-liquid and bipolaronic-liquid phases.},\n\tjournal = {EPL (Europhysics Letters)},\n\tauthor = {Fehske, H. and Hager, G. and Jeckelmann, E.},\n\tyear = {2008},\n\tkeywords = {luttinger},\n\tpages = {57001+}\n}\n\n","author_short":["Fehske, H.","Hager, G.","Jeckelmann, E."],"key":"fehske_metallicity_2008","id":"fehske_metallicity_2008","bibbaseid":"fehske-hager-jeckelmann-metallicityinthehalffilledholsteinhubbardmodel-2008","role":"author","urls":{"Paper":"http://dx.doi.org/10.1209/0295-5075/84/57001"},"keyword":["luttinger"],"downloads":0},"search_terms":["metallicity","half","filled","holstein","hubbard","model","fehske","hager","jeckelmann"],"keywords":["luttinger"],"authorIDs":[],"dataSources":["qfSWh53k794ZuPrG9"]}