Quantum communication with zero-capacity channels
From FutureNovo - Anticipating things to come
In a recently published paper, Graeme Smith at the IBM Watson Research Center and Jon Yard from Los Alamos National Labs show that two zero-capacity quantum channels can have a nonzero capacity when used together.
This capability suggests unique applications for the fields of quantum encryption, quantum communication and quantum computing.
According to their paper, “this uniquely quantum mechanical effect unveils a rich structure in the theory of quantum communications and points to the existence of incomparable types of quantum information, implying that the quantum capacity of a channel does not uniquely specify its ability for transmitting quantum information.
