Teleportation is the ability to send quantum information from one part of the universe to another, without travelling through the space in between. By sending all the information that describes a single particle and passing it to another, this second particle takes on all the characteristics of the first.
It is physically indistinguishable from the first and in a sense, becomes the first particle, albeit in a different part of the universe. Hence the name teleportation, first demonstrated in the 1990s.
Today teleportation is a standard phenomenon in quantum optics laboratories and has become a foundational technology behind the slowly emerging quantum internet.
But it has another use. In the 2000s, a Japanese physicist called Masahiro Hotta at Tohoku University took the idea further by suggesting that if teleportation can transmit information, then it should also be able to transmit energy too. He went on to develop the theoretical foundation ...
