Although filtering each perfect photon requires sacrificing several imperfect photons, this reduces the total number of photons needed. This saves an enormous amount of computing power and makes ...

Researchers describe new high-purity single-photon source that can operate at room temperature. The source is an important step toward practical applications of quantum technology, such as highly ...

A new theory that explains how light and matter interact at the quantum level has enabled researchers to define for the first time the precise shape of a single photon. The nature of this interaction ...

Photovoltaics, the conversion of light to electricity, is a key technology for sustainable energy. Since the days of Max Planck and Albert Einstein, we know that light as well as electricity are ...