Nowadays,with the development of mode society,water pollution has become an increasingly serious problem with hazardous heavy ions and organic dyes as common po
A more efficient model of the quantum Stackelberg duopoly is proposed by using the asymmetric quantization scheme of Qin et al.In this model,two entanglement fa
We present an exact numerical method to calculate the mean first passage time for the random walk on the network between any source node and any target which co
We report a compact and wavelength-tunable periodically poled lithium niobate (PPLN) Q-switched laser with intra-cavity optical parametric generation,producing