supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 06029431)
We give a strategy for nonlocal unambiguous discrimination (UD) among N linearly independent nonorthogonal qudit states lying in a higher-dimensional Hilbert space. The procedure we use is a nonlocal positive operator...
Project supported by the Natural Science Foundation of Guangdong Province,China (Grant No 06029431)
This paper considers the teleportation of quantum controlled-Not (CNOT) gate by using partially entangled states. Different from the known probability schemes, it presents a method for teleporting a CNOT gate with u...