<正> Using a quantum channel consisting of a GHZ state exposed to noisy environment,we investigate how toremotely prepare an entangled state and a qubit state,r
<正> We present a very simple scheme for generating four-qubit cluster states with one step using paritymeasurement based on dipole-induced transparency in a ca
<正> As one exact candidate of the higher dimensional black hole,the 5D Ricci-flat Schwarzschild-de Sitterblack string space presents something interesting.In t