Tetrapartite entanglement measures of W-class in noninertial frames
Torres-Arenas Ariadna J1, López-Zúñiga Edgar O1, 2, Antonio Saldaña-Herrera J1, 2, Dong Qian1, Sun Guo-Hua3, Dong Shi-Hai1, †
       

The π 4 -tangle and Π 4 whole entanglement as functions of the acceleration parameter rd.