Mohsen Aghaee - Razi University, Kermanshah, Iran
MohammadVahid Takook - Razi University, Kermanshah, Iran
Ardeshir Rabeie - Razi University, Kermanshah, Iran

In this paper we are going to calculate the correlation function and Bell'sinequality for three qubit W state under the Lorentz transformations. This survey is basedon the introduction of two different expressions of spin observable were presented byLee-Young and Kim-Son.

Entanglement, Spin, Bell's inequality, W state, Qubit