Quantum Correlation in Matrix Product States of One-Dimensional Spin Chains |
| |
Authors: | ZHU Jing-Min |
| |
Institution: | College of Optoelectronics Technology, Chengdu University of Information Technology, Chengdu 610225, China |
| |
Abstract: | For our proposed composite parity-conserved matrix product state (MPS), if only a spin block length is larger than 1, any two such spin blocks have correlation including classical correlation and quantum correlation. Both the total correlation and the classical correlation become larger than that in any subcomponent; while the quantum correlations of the two nearest-neighbor spin blocks and the two next-nearest-neighbor spin blocks become smaller and for other conditions the quantum correlation becomes larger, i.e., the increase or the production of the long-range quantum correlation is at the cost of reducing the short-range quantum correlation, which deserves to be investigated in the future; and the ration of the quantum correlation to the total correlation monotonically decreases to a steady value as the spacing spin length increasing. |
| |
Keywords: | matrix product state (MPS) long-range quantum correlation geometry quantum discord (GQD) |
|
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
|