In a first, scientists have successfully teleported a photon – particle of light – over a distance of six kilometres, an advance that may enable secure communication without having to worry about eavesdropping.
Researchers at the University of Calgary in Canada, led by professor Wolfgang Tittel, set a new record for distance of transferring a quantum state by teleportation, using fibre optics cable infrastructure.
“Such a network will enable secure communication without having to worry about eavesdropping, and allow distant quantum computers to connect,” said Tittel.
The experiment is based on the entanglement property of quantum mechanics, also known as “spooky action at a distance” – a property so mysterious that not even German physicist Albert Einstein could come to terms with it. more