When talking about quantum mechanics and the interaction of elementary particles, scientists often mean a purely theoretical picture of what is happening. But researchers at the University of Glasgow for the first time in history were able to get a picture of the so-called quantum entanglement.
The phenomenon of quantum entanglement, or bell's entanglement, is considered one of the fundamental in quantum mechanics. It describes the behavior of photons in identical quantum States. The photo published in the journal "Scientific achievements" for the first time captures the interaction of two photons that share their physical state regardless of the distance between the particles themselves.
To get the picture, physicists had to create a system emitting streams of entangled photons from a quantum light source. When passing through a liquid crystal material, the photon phase changes. At the time of the photon state change and interaction with another, the camera recorded the process.
Today, the concept of quantum entanglement is used in computing and cryptography. The photo received by scientists will help to advance this area and to open a new type of the photo.