Quantum 'paparazzi' film photons in the act of pairing up
Wednesday, April 22, 2015 - 18:30
in Physics & Chemistry
In the quantum world of light, being distinguishable means staying lonely. Only those photons that are indistinguishable can wind up in a pair, through what is called Hong-Ou-Mandel interference. This subtle quantum effect has been successfully imaged for the first time.