The Science of Entanglement

Written by Grant Mills on . Posted in Science

It seems like the last few years have been good for Teleportation.

2009 saw the first successful teleportation of single particle information changes by the Joint Quantum Institute (JQI) in the US.

In 2010 the Chinese decided to pass water over all the previous records by teleporting single particle information over a whopping 16 km. See here.

And now in 2011 it’s been reported that a team led by the University of Tokyo have been the first to successfully teleport complex information without any information-loss, an issue that has been a bother to previous research.

The Teleporter used in the Uni Tokyo experiment.

Sadly, Star Trek analogies are premature as the technology is concerned with the instantaneous movement of information not yet physical matter.

The experiments rely on the phenomenon called ‘entanglement’, one of the ‘spookier’ aspects allowed by the inside-out, upside down and roundabout quantum mechanical world that is haunted by the ghost of Schrodinger’s Cat.

Entanglement allows for one particle to be identically effected by acting on the particle to which it is entangled. That is to say, that two entangled atoms can be separated and any changes in information that occur in one will instantaneously occur in its entangled twin, allowing information to cross a distance faster than the speed of light. In essence, teleported.

Interestingly, according to the article on the Chinese advances they could be deploying land to satellite quantum communication in only a few years.

The advances bring quantum computing – the long time dream of computer-physics geeks everywhere – one step closer and potentially, with a considerably longer world-view, the future of commuting to work on the space station via your handy-dandy personal teleporter.

See the articles for better explanations than my mushy brain can give you.

With thanks to http://engineering.curiouscatblog.net

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