6533b7d6fe1ef96bd126642d

RESEARCH PRODUCT

DMRG Investigation of Stripe Formation in Doped Hubbard Ladders

Eric JeckelmannGerhard WelleinHolger FehskeGeorg Hager

subject

PhysicsCondensed matter physicsDensity matrix renormalization groupDopingCondensed Matter::Strongly Correlated ElectronsBoundary value problemSpin (physics)

description

Using a parallelized density matrix renormalization group (DMRG) code we demonstrate the potential of the DMRG method by calculating ground-state properties of two-dimensional Hubbard models. For 7 × 6, 11 × 6 and 14 × 6 Hubbard ladders with doped holes and cylindrical boundary conditions (BC), open in x-direction and periodic in the 6-leg y-direction, we comment on recent conjectures about the appearance of stripe-like features in the hole and spin densities. In addition we present results for the half-filled 4 ×4 system with periodic BC, advance to the 6 × 6 case and pinpoint the limits of the current approach.

yearjournalcountryeditionlanguage
2005-11-17
https://doi.org/10.1007/3-540-26657-7_31