Published October 7, 2005
| Version v1
Journal article
Entanglement in spin-1 Heisenberg chains
Creators
- 1. Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, HangZhou 310027 (China)
- 2. Department of Applied Physics, Zhejiang University of technology, HangZhou 310014 (China)
Description
By using the concept of negativity, we study entanglement in spin-1 Heisenberg chains. Both the bilinear chain and the bilinear-biquadratic chain are considered. Due to the SU(2) symmetry, the negativity can be determined by two correlators, which greatly facilitate the study of entanglement properties. Analytical results of negativity are obtained in the bilinear model up to four spins and in the 2-spin bilinear-biquadratic model, and numerical results of negativity are presented. We determine the threshold temperature before which the thermal state is doomed to be entangled
Availability note (English)
Available online at http://stacks.iop.org/0305-4470/38/8703/a5_40_014.pdf or at the Web site for the Journal of Physics. A, Mathematical and General (ISSN 1361-6447) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0305-4470/38/8703/a5_40_014.pdf; http://www.iop.org/;
- DOI
- 10.1088/0305-4470/38/40/014;
- PII
- S0305-4470(05)97042-X;
Publishing Information
- Journal Title
- Journal of Physics. A, Mathematical and General
- Journal Volume
- 38
- Journal Issue
- 40
- Journal Page Range
- p. 8703-8713
- ISSN
- 0305-4470
- CODEN
- JPHAC5
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36098627
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ENERGY LEVELS; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; SPIN; SU-2 GROUPS
- Descriptors DEC
- ANGULAR MOMENTUM; LIE GROUPS; MECHANICS; PARTICLE PROPERTIES; SU GROUPS; SYMMETRY GROUPS