200 citations · 861 across the 28 of their papers we have counts for
7 papers · 1 filter
Luttinger surface and exchange splitting induced by ferromagnetic fluctuations
Motoharu Kitatani, Yusuke Nomura, Shiro Sakai +1
Ferromagnetism in the single-orbital Hubbard model, which contains only local Coulomb repulsion and no explicit ferromagnetic exchange interactions, has been extensively studied. H…
Modulated Dirac bands and integer hopping ratios in a honeycomb lattice of phenalenyl-tessellation molecules
Naoki Morishita, Kenshin Komatsu, Motoharu Kitatani +1
A family of nanographene molecules called phenalenyl-tessellation molecules (PTMs) exhibits two types of zero modes: a type that spreads over the entire…
Exploration of the potential energy surface for the conformational interconversion of the amyloid peptide at the fibril end
Yasuhiro Oishi, Motoharu Kitatani, Kichitaro Nakajima +2
The formation of amyloid fibrils comprising amyloid (A) peptides is associated with the pathology of Alzheimer's disease. In this study, we theoretically investigated the A$…
Two distinct quantum critical behaviors in the doped two-dimensional periodic Anderson model
M. Kitatani, T. Schäfer, A. A. Katanin +2
We study quantum criticality in the doped two-dimensional periodic Anderson model with the hybridization acting as a tuning parameter. Employing the dynamical vertex approximation…
Entanglement in the pseudogap regime of cuprate superconductors
Frederic Bippus, Juraj Krsnik, Motoharu Kitatani +4
We find a strongly enhanced entanglement within the pseudogap regime of the Hubbard model. This entanglement is estimated from the quantum Fisher information and, avoiding the ill-…
Strong-coupling high- superconductivity in doped correlated band insulators
Yusuke Nomura, Motoharu Kitatani, Shiro Sakai +1
We explore the superconducting properties of the bilayer Hubbard model, which exhibits a high transition temperature () for an pairing, using a cluster extensi…
Superconducting phase diagram of finite-layer nickelates NdNiO
Andreas Hausoel, Simone Di Cataldo, Motoharu Kitatani +2
Following the successful prediction of the superconducting phase diagram for infinite-layer nickelates, here we calculate the superconducting vs. the number of lay…