Quantum Communication With Entangled Photons

Quantum Communication with Entangled Photons

In 2015, four experiments testing Bell’s theorem closed significant loopholes and implemented quantum entanglement with unprecedented quality. Such experiments open up possibilities for future applications such as secure global satellite-based quantum communication and quantum teleportation over large distances. Another application is entanglement-certified sources for random numbers. Future Bell tests include the use of cosmic sources of randomness.