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Regensburg 2019 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 17: Poster Session: Correlated Electrons 1

TT 17.16: Poster

Monday, April 1, 2019, 15:00–18:30, Poster D

Exact Diagonalization study of large Hubbard clusters — •Mikhail Danilov1, Sergei Iskakov2, Malte Harland1, Sergei Brener1, Andrei Bagrov3, Alexander Lichtenstein1, and Mikhail Katsnelson31I. Institut für Theoretische Physik Jungiusstrasse 9, 20355 Hamburg, Germany — 2Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA — 3Institute for Molecules and Materials, Radboud University, 6525AJ Nijmegen, The Netherlands

Using efficient exact diagonalization scheme, we study electronic structure of 4x4 doped Hubbard cluster with realistic hopping parameters including next nearest neighbour hopping t′ = -0.3t, which is optimal for superconducting cuprates.

To find possible candidates for superconducting regime we calculate the spectral function and network entanglement measures for different doping and Coulomb interaction.

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