پديدآورندگان :
Baziar Fatemeh Solalehbaziar70@gmail.com University of Mazandaran, Department of Physics, Faculty of science, Babolsar, Iran; , Sadeghi Jafar University of Mazandaran, Department of Physics, Faculty of science, Babolsar, Iran; , Alijanzadeh-Boura Hoda h.alijanzadeh@umz.ac.ir Mazandaran Institute of technology, Babol, Iran;
كليدواژه :
quantum states , entanglement witness , GHZ state , W state
چكيده فارسي :
We apply the entanglement witness introduce by M. A. Jafarizadeh et. al. on several known states and discuss their separability over parameters of the states and EW. By plotting the expectation value of EW versus the parameters of states and EW we conclude the separability properties of the states and show their agreement with the known ones for some special values of the parameters.
