36 citations · 47 across the 5 of their papers we have counts for
5 papers
Charge and spin dynamics of the Hubbard chains
Youngho Park, Shoudan Liang
We calculate the local correlation functions of charge and spin for the one-chain and two-chain Hubbard model using the density matrix renormalization group method and the recursio…
Phase diagram of the two-chain Hubbard model
Youngho Park, Shoudan Liang, T. K. Lee
We have calculated the charge gap and spin gap for the two-chain Hubbard model as a function of the on-site Coulomb interaction and the interchain hopping amplitude. We used the de…
Power-law Distributions in the Kauffman Net
Amartya Bhattacharjya, Shoudan Liang
Kauffman net is a dynamical system of logical variables receiving two random inputs and each randomly assigned a boolean function. We show that the attractor and transient lengths…
Ferromagnetism in the Infinite-U Hubbard Model
Shoudan Liang, Hanbin Pang
We have studied the stability of the ferromagnetic state in the infinite-U Hubbard model on a square lattice by approximate diagonalization of finite lattices using the density mat…
Can Density-matrix renormalization group be Applied to two dimensional systems?
Shoudan Liang, Hanbin Pang
In order to extend the density-matrix renormalization-group (DMRG) method to two-dimensional systems, we formulate two alternative methods to prepare the initial states. We find th…