Greenberger-Horne-Zeilinger correlation and Bell-type inequality seen   from moving frame
  The relativistic version of the Greenberger-Horne-Zeilinger experiment with massive particles is proposed. We point out that, in the moving frame, GHZ correlations of spins in original directions transfer to different directions due to the Wigner rotation. Its effect on the degree of violation of Bell-type inequality is also discussed. 
Hao You, An Min Wang, Xiaodong Yang, Wanqing Niu, Xiaosan Ma, Feng Xu