Discrete variable gate-model quantum computing
Mark Fingerhuth, Tomáš Babej, Péter Wittek · Definitions · 2019
T his is the generalization of digital computing where bits are replaced by qubits and logical transformations by a finite set of unitary gates that can approximate any arbitrary unitary operation. A classical digital circuit transforms bit strings to bit strings through logical operations, whereas a quantum circuit transforms a special probability distribution over bit strings-the quantum state-to another quantum state. Most quantum computing hardware companies focus on this model. For short, we refer to this model as the discrete gate model.