Natural Science Journal of Xiangtan University
Selective Atomic Measurement to Influences of Entanglement Properties
LU Dao-ming
Abstract
Considering three two-level atoms initially in the W state,two atoms of the three atoms were put into initially empty cavity and made resonant interaction.The atom-cavity entanglement evolution and entanglement evolution between two cavities were investigated.The influences of state-selective measurement of the atom outside cavity on entanglement properties were discussed.The results obtained using the numerical method show that atom-cavity entanglement property and entanglement property between two cavities are strengthened through the state-selective measurement of the atom outside the cavity.