TITLE:
The Scaling of Entanglement Entropy for One Spatial XXZ Spin Chain
AUTHORS:
Honglei Wang, Chunhuan Xiang
KEYWORDS:
Entanglement Entropy, Quantum Phase Transitions, Scaling, Numerical Simulation
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.4 No.1,
January
13,
2016
ABSTRACT: We investigate the scaling of entanglement entropy for one spatial XXZ spin chain by using matrix product states to approximate ground states. The entanglement entropy scales logarithmically with a coefficient that is determined by the associated conformal field theory, the quantum phase transitions occurred between Large-D and Halde phase, Halde phase and Neel phase. The scaling relationship is given in this paper.