Quantum Photonics (QP) is an area of Quantum information science (QIS), a pioneering field of research at the interface of physics and information science. By harnessing the unique properties of quantum mechanics to encode, transmit and process information, QIS offers significant opportunities to revolutionize information and communication technologies.
Quantum technologies are going to be ready to implement faster algorithms, allow safer transmission of data, and perform more accurate measurements. For all its theoretical potential, we need a solid experimental platform with which quantum properties are often addressed with ease and precision, whilst simultaneously preserving those fragile nonclassical features.
Photons are a viable choice to probe and exploit quantum phenomena since they are doing not suffer from thermal coupling with the external world. They also benefit from a range of degrees of freedom onto which quantum states are often prepared, processed, and measured with relative simplicity.
Quantum communication poses a rather different problem to computation: how to distribute quantum resources over large distances. One proposal to mitigate the loss of entanglement is named entanglement distillation: extracting a smaller group of more strongly entangled states from an outsized group of weakly entangled states.