2009/05/11 by Dong-Ling Deng, Shi-Jian Gu, Jing-Ling Chen
Computer Science · Physics and Astronomy · #Field (mathematics) #Ising model #Magnetic field #Multipartite #Multipartite entanglement #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #quant-ph
paper · pdf · doi:10.1016/j.aop.2009.09.009
4pages, any comment is welcome
arxiv created 2009/05/11 · openalex publication_date 2009/09/21 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Recently Seevinck and Uffink argued that genuine multipartite entanglement (GME) had not been established in the experiments designed to confirm GME. In this paper, we use the Bell-type inequalities introduced by Seevinck and Svetlichny [Phys. Rev. Lett. 89, 060401 (2002)] to investigate the GME problem in the one-dimensional transverse-field Ising model. We show explicitly that the ground states of this model violate the inequality when the external transverse magnetic field is weak, which indicate that the ground states in this model with weak magnetic field are fully entangled. Since this model can be simulated with nuclear magnetic resonance, our results provide a fresh approach to experimental test of GME.