$$\begin{aligned} {|{\psi _{in}}\rangle }= & \sum _{i=0}^{N-1} \alpha _i{|{i}\rangle }^A{|{0}\rangle }^B \nonumber \\ {|{\psi _{out}}\rangle }= & \sum _{i=0}^{N-1 ...
Entanglement is an essential ingredient in many quantum communication protocols. In particular, entanglement can be exploited in quantum key distribution (QKD) to generate two correlated random bit ...
Say the words “quantum supremacy” at a gathering of computer scientists, and eyes will likely roll. The phrase refers to the idea that quantum computers will soon cross a threshold where they’ll ...