Pace-Keeping Density Matrix Renormalization Group

Pace-keeping DMRG is the method for solving a time-dependent Schrodinger equation of many interacting particles.   This method was first introduced in this short paper:

• H. G. Luo, T. Xiang, and X. Q. Wang, Comment on “Time-Dependent Density-Matrix Renormalization Group: A Systematic Method for the Study of Quantum Many-Body Out-of- Equilibrium Systems”, Physical Review Letters 91 (2003) 049701-1-1. cond-mat/0212580.