Physicists add amplifier to quantum communication toolbox
Thursday, June 1, 2017 - 07:31
in Physics & Chemistry
Quantum encryption using single photons is a promising technique for boosting the security of communication systems and data networks, but there are challenges in applying the method over large distances due to transmission losses. Using conventional optical amplification doesn't help as this disrupts the quantum link between sender and receiver, but physicists in Europe have found a solution – heralded photon amplification – and put it to the test.