Researchers demonstrate how light particles—photons—can become a powerful quantum resource when generated on a photonic chip in the form of colour-entangled quDits. Unlike a qubit, which is a mechanical system with only two states (the classic example being 0 and 1), quDits can have multiple quantum states: for example, a high-dimensional photon can be red and yellow and green and blue […]
Tag: photons
Physicists explain bizarre quantum behaviour of light
Physicists have explained the results of a 2012 experiment in which photons appeared to be simultaneously acting as a wave and a particle, something that should not happen according to quantum physics. The authors of the new paper show that photons can behave differently depending on what part of the ring they came from. This […]
