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Effects of Different Defect Magnetic Fields on Entanglement and Information Transmission in Quantum Spin Systems(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2015年02期
Page:
38-
Research Field:
物理学
Publishing date:

Info

Title:
Effects of Different Defect Magnetic Fields on Entanglement and Information Transmission in Quantum Spin Systems
Author(s):
Li Yanbiao1; Qin Meng1; 2; Wang Xiao1; Liu Cuicui1; Wang Bili1
(1.Institute of Science,PLA University of Science and Technology,Nanjing 211101,China) (2.Department of Physics,Nanjing University,Nanjing 210093,China)
Keywords:
quantum communications; quantum entanglement; fidelity
PACS:
O431.1
DOI:
-
Abstract:
In order to enhance the fidelity in quantum communications,we investigate the effects of different defect magnetic field on the entanglement and information transmission in a quantum spin model. We discuss the effects of different defect magnetic field,temperature and anisotropy interaction on the entanglement and quantum communication. The results show that the entanglement in z-direction is stronger than x-direction. There is competition relation between the two different magnetic fields. We also find that the antiferromagnetic system is more proper for information transmission.

References:

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Last Update: 2015-06-30