71 citations · 128 across the 8 of their papers we have counts for
4 papers · 1 filter
Strings in strongly correlated electron systems
P. Fulde, F. Pollmann
It is shown that strongly correlated electrons on frustrated lattices like pyrochlore, checkerboard or kagome lattice can lead to the appearance of closed and open strings. They ar…
Kinetic ferromagnetism on a kagome lattice
F. Pollmann, P. Fulde, K. Shtengel
We study strongly correlated electrons on a kagome lattice at 1/6 and 1/3 filling. They are described by an extended Hubbard Hamiltonian. We are concerned with the limit |t|<<V<<U…
Ab initio wavefunction based methods for excited states in solids: correlation corrections to the band structure of ionic oxides
L. Hozoi, U. Birkenheuer, P. Fulde +2
Ab initio wavefunction based methods are applied to the study of electron correlation effects on the band structure of oxide systems. We choose MgO as a prototype closed-shell ioni…
Magnetic impurity in correlated electrons system
S. Nishimoto, P. Fulde
We study a magnetic impurity embedded in a correlated electron system using the density-matrix renormalization group method. The correlated electron system is described by the one-…