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Photoemission spectra of many-polaron systems
M. Hohenadler, D. Neuber, W. von der Linden +3
The cross over from low to high carrier densities in a many-polaron system is studied in the framework of the one-dimensional spinless Holstein model, using unbiased numerical meth…
Stripe formation in doped Hubbard ladders
G. Hager, G. Wellein, E. Jeckelmann +1
We investigate the formation of stripes in $7\chunks \times 6$ Hubbard ladders with $4\chunks$ holes doped away from half filling using the density-matrix renormalization group (DM…
Luttinger liquid versus charge density wave behaviour in the one-dimensional spinless fermion Holstein model
H. Fehske, G. Wellein, G. Hager +3
We discuss the nature of the different ground states of the half-filled Holstein model of spinless fermions in 1D. In the metallic regime we determine the renormalised effective co…
Single-particle excitations and phonon softening in the one-dimensional spinless Holstein model
S. Sykora, A. Huebsch, K. W. Becker +2
We investigate the influence of the electron-phonon coupling in the one-dimensional spinless Holstein model at half-filling using both a recently developed projector-based renormal…