Stripes on a 6-leg Hubbard ladder.
While density matrix renormalization group calculations find stripes on doped n-leg t-J ladders, little is known about the possible formation of stripes on n-leg Hubbard ladders. Here we report results for a 7x6 Hubbard model with four holes. We find that a stripe forms for values of U/t ranging from 6 to 20. For U/t approximately 3-4, the system exhibits the domain wall feature of a stripe, but the hole density is very broadened.
White
Steven R
SR
Department of Physics, University of California, Irvine, California 92697, USA.
Scalapino
D J
DJ