Integrated optics components for quantum information

Recently The authors reported the implementation of quantum optic integrated circuits, which not only dramatically reduces the footprint of quantum circuits, but allows unprecedented stability and higher performance. The authors demonstrated silica on silicon circuits that implement key components for quantum information, including CNOT gates and single-qubit operations. These components show promising progresses toward fault tolerance operation. The authors also used integrated waveguides to implement a circuit that performs a compiled version of Shor's quantum algorithm to factorize 15. Here the authors report the demonstration of circuits that extend the capabilities of the components already demonstrated, to take full advantage of the integrated optics architecture.