caa a22 4500 463196562 CHVBK 20180406164924.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10773-007-9360-z doi (NATIONALLICENCE)springer-10.1007/s10773-007-9360-z Thermal Entanglement of XXZ Heisenberg Chain under Rectangle Magnetic Field [Elektronische Daten] [Xin Zhao, Ling Zhou] We study thermal entanglement of XXZ Heisenberg chain under rectangle magnetic field. Under this magnetic fieldB, the region of thermal entanglement in terms ofB and temperatureT can be extended. Moreover, one can improve threshold temperature, where entanglement vanish, just by increasing the strength of magnetic field. This effect is similar to that of the anisotropic coupling of spin in XY plane but provide us a realizable method to improve threshold temperature. Springer Science+Business Media, LLC, 2007 Zhao Xin Department of Physics, Dalian University of Technology, 116024, Dalian, China aut Zhou Ling Department of Physics, Dalian University of Technology, 116024, Dalian, China aut International Journal of Theoretical Physics Springer US; http://www.springer-ny.com 46/10(2007-10-01), 2437-2442 0020-7748 46:10<2437 2007 46 10773 https://doi.org/10.1007/s10773-007-9360-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10773-007-9360-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao Xin Department of Physics, Dalian University of Technology, 116024, Dalian, China aut NATIONALLICENCE 700 1- Zhou Ling Department of Physics, Dalian University of Technology, 116024, Dalian, China aut NATIONALLICENCE 773 0- International Journal of Theoretical Physics Springer US; http://www.springer-ny.com 46/10(2007-10-01), 2437-2442 0020-7748 46:10<2437 2007 46 10773 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer