Author(s)

Honglei Wang¹, Chunhuan Xiang^2*

¹College of Medical Informatics, Chongqing Medical University, Chongqing, China.
²School of Public Health and Management, Chongqing Medical University, Chongqing, China.

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.

Entanglement Entropy, Quantum Phase Transitions, Scaling, Numerical Simulation

Wang, H. and Xiang, C. (2016) The Scaling of Entanglement Entropy for One Spatial XXZ Spin Chain. Journal of Applied Mathematics and Physics, 4, 48-52. doi: 10.4236/jamp.2016.41008.