Photon-transistors for the supercomputers of the future

Scientists have worked out a new theory which describe how the necessary transistors for the quantum computers of the future may be created. Researchers dream of quantum computers. Incredibly fast super computers which can solve such extremely complicated tasks that it will revolutionise the application possibilities. But there are some serious difficulties. One of them is the transistors, which are the systems that process the signals. Today the signal is an electrical current. For a quantum computer the signal can be an optical one, and it works using a single photon which is the smallest component of light.