Quasideterministic realization of a universal quantum gate in a single scattering process
Quasideterministic realization of a universal quantum gate in a single scattering process
We show that a flying particle, such as an electron or a photon, scattering along a one-dimensional waveguide from a pair of static spin-$\frac{1}{2}$ centers, such as quantum dots, can implement a controlled-z gate (universal for quantum computation) between them. This occurs quasideterministically in a single scattering event, with no …