15 citations · 15 across the 2 of their papers we have counts for
2 papers
cond-mat.quant-gas2009
Fermionic bound states on a one-dimensional lattice
J. -P. Nguenang, S. Flach
We study bound states of two fermions with opposite spins in an extended Hubbard chain. The particles interact when located both on a site or on adjacent sites. We find three diffe…
cond-mat.mes-hall2008★ 15 cited
Boundary effects on quantum q-breathers in a Bose-Hubbard chain
Ricardo A. Pinto, Jean Pierre Nguenang, Sergej Flach
We investigate the spectrum and eigenstates of a Bose-Hubbard chain containing two bosons with fixed boundary conditions. In the noninteracting case the eigenstates of the system d…