"Spooky" –First captured image of quantum entanglement

"The image we managed to capture is an elegant demonstration of a fundamental property of nature, seen for the very first time," said Paul-Antoine Moreau, of the University of Glasgow , about an elusive phenomenon that had baffled Albert Einstein called "spooky action at a distance".A little less than three months after the astronomers captured the very first image of a supermassive black hole, physicists managed to take a picture of a powerful form of quantum entanglement called Bell entanglement – capturing visual evidence.

Two particles that interact with each other – for example two photons crossing a beam splitter – can sometimes remain connected and instantly share their physical states, regardless of the distance between them. This connection is known as quantum entanglement and it underlies the field of quantum mechanics.

"The loophole" – the discovery that could have predicted the reason for the existence of the universe

Einstein thought that quantum mechanics was "frightening" because of the immediacy of the seemingly distant interaction between two entangled particles, which seemed inconsistent with elements of his special theory of relativity.

Later, Sir John Bell formalized this concept of nonlocal interaction describing a strong form of entanglement exhibiting this phantasmagoria. Today, while Bell 's entanglement is being exploited in practical applications such as quantum computing and cryptography, it has never been captured in a single image.

"Listen on the Quantum Universe" – An amazing new technology

In an article published today in the journal Science Advances, a team of physicists from the University of Glasgow describes how they made Einstein's phantasmagoria visible on an image.

They have developed a system that triggers a stream of entangled photons from a quantum light source on "unconventional objects" – displayed on liquid crystal materials that alter the photon phase as they pass through.

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They set up a super-sensitive camera capable of detecting single photons that would only take an image if it sighted both a photon and its entangled "twin", creating a visible record of the entanglement of photons.

"This is an exciting result that could be used to advance the emerging field of quantum computing and lead to new types of imaging."

The Daily Galaxy via the University of Glasgow