caa a22 4500 445383275 CHVBK 20180317143024.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10948-010-1059-3 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1059-3 Electron-Hole Asymmetry in the Dynamic Hubbard Model [Elektronische Daten] [G. Bach, F. Marsiglio] The two-site dynamical mean field theory (DMFT) is applied to the dynamic Hubbard model. This model takes into account a correction to the Coulomb interaction due to particle double occupancy by using an Ising-like degree of freedom to represent an associated boson field. At finite boson frequency, the appearance of a Mott gap is found to be enhanced even though it shows a metallic phase with the same bare on-site interaction U in the conventional Hubbard model. Alack of electron-hole symmetry is observed through the quasi-particle weight versus particle density. Springer Science+Business Media, LLC, 2010 Dynamic Hubbard model nationallicence Electron-hole asymmetry nationallicence Dynamical mean field theory nationallicence Quasiparticle residue nationallicence Bach G. Department of Physics, University of Alberta, T6G 2G7, Edmonton, Alberta, Canada aut Marsiglio F. Department of Physics, University of Alberta, T6G 2G7, Edmonton, Alberta, Canada aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1571-1575 1557-1939 24:5<1571 2011 24 10948 https://doi.org/10.1007/s10948-010-1059-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1059-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bach G. Department of Physics, University of Alberta, T6G 2G7, Edmonton, Alberta, Canada aut NATIONALLICENCE 700 1- Marsiglio F. Department of Physics, University of Alberta, T6G 2G7, Edmonton, Alberta, Canada aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1571-1575 1557-1939 24:5<1571 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer