Density matrix renormalization group study of the striped phase in the 2D t-J model

Using the density matrix renormalization group, we study the 2D t-J model at a hole doping of x = 1/8 on clusters as large as 19 x 8, We find a striped phase consistent with recent neutron scattering experiments. We find that bond-centered and site-centered stripes have nearly the same energy, suggesting that in the absence of pinning effects the domain walls can fluctuate.