Technology

'Time Cloak' Tears a Hole in Time, Enabling Events to Go Undetected

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Scientists have created a 'time cloak' which is able to bend light to tear holes in time itself.

This enables events to go unseen by people outside of the cloak, but they have not figured out how to extend it by more than a few milliseconds.

It could also have an important implication on sending secret messages through fibre optic cables. 

It is able to hide a continuous stream of events at telecommunications data rates, quicker than a similar invention which was released last year.

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While this invention is no where close to being a legitimate 'invisibility cloak,' as it can only hide single brief events for periods of 0.00012 of a second, scientists believe it is one step closer to working for a longer amount of time.

Professor Andrew Weiner of Purdue University said, "Through advances in metamaterials - artificially engineered media with exotic properties - the once fanciful invisibility cloak has now assumed a prominent place in scientific research."

"By extending these concepts investigators have recently described a cloak which hides events in time by creating a temporal gap in a probe beam that is subsequently closed up - any interaction which takes place during this hole in time is not detected."

"However, these results are limited to isolated events that fill a tiny portion of the temporal period giving a fractional cloaking window which is much too low for applications such as optical communications."

"Here we demonstrate another technique for temporal cloaking which operates at telecommunication data rates and by exploiting temporal self-imaging through the Talbot effect hides optical data from a receiver."

"We succeed in cloaking 46 percent of the entire time axis and conceal pseudorandom digital data at a rate of 12.7 gigabits per second."

Though it is a breakthrough, it will take awhile for scientists to cloak time for even a full second. 

They estimate that it could take a device about the size of our solar system for scientists to create a gap in time of eight minutes. 

Sources: Daily Mail, The Verge