Los puntos clave no están disponibles para este artículo en este momento.
We describe the construction of a conditional quantum control-NOT (CNOT) gate from linear optical elements following the program of Knill, Laflamme, and Milburn Nature 409, 46 (2001). We show that the basic operation of this gate can be tested using current technology. We then simplify the scheme significantly.
Ralph et al. (Wed,) studied this question.