Generalized Lanczos method for systematic optimization of tensor network states Project supported by the National Natural Science Foundation of China (Grant Nos. 11190024 and 11474331). |
(color online) Bond dimension χ dependence of the ground state energy E obtained by the boundary MPS method for the Lanczos-PEPS wave function with D = 3 and n = 50 of the Heisenberg model on the 10 × 10 square lattice. |