3 papers
cond-mat.str-el2020
Gapless and Massive 1D Singlet Dispersion Channel in Infinite Spin-1/2 Ladders ---Infinite Quasi-1D Entanglement Perturbation Theory for Excitation
Lihua Wang, Aslam Parvej, D. ChangMo Yang +1
We solve for the elementary excitation in infinite quasi-1D quantum lattices by extending the recently developed infinite quasi-1D entanglement perturbation theory. The wave functi…
cond-mat.str-el2018
Space Reduction in Matrix Product State
Lihua Wang, Kwang S. Kim
We reconstruct a matrix product state (MPS) in reduced spaces using density matrix. This scheme applies to a MPS built on a blocked quantum lattice. Each block contains physica…
cond-mat.str-el2018
Quantum Dimensional Transition in Spin- Antiferromagnetic Heisenberg Model on A Square Lattice and Space Reduction in Matrix Product State
Lihua Wang, Kwang S. Kim
We study the spin- antiferromagnetic Heisenberg model on an infinity-by- square lattice for even 's up to . Previously, the nonlinear sigma model perturbativ…