Skip to comments.Temporal cloak erases data from history
Posted on 06/09/2013 1:05:34 AM PDT by neverdem
Technique that hides rapid data streams could provide ultra-secure communications.
If youve ever wanted to edit an event from your history, then help may soon be at hand. Electrical engineers have used lasers to create a cloak that can hide communications in a 'time hole', so that it seems as if they were never sent. The method, published today in Nature1, is the first that can cloak data streams sent at the rapid rates typically seen in telecommunications systems. It opens the door to ultra-secure transmission schemes, and may also provide a way to better shield information from noise corruption.
In 2010, Martin McCall, an optical physicist at Imperial College London, and his colleagues proposed2 that it may be possible to create temporal cloaks that carve out short windows in time during which operations can be carried out unnoticed. Their work built on the principles behind invisibility cloaks, which hide objects in space by channelling light rays around them. When viewed from a distance, the light appears to have travelled along a straight line, without having hit any intervening object.
Similarly, McCall and colleagues suggested that by pulling light waves apart in time, and then compressing them back together, it should be possible to create 'time pockets' in which to cloak events. In theory, this could enable a whole new level of security for data transmission along optical fibres, says Joseph Lukens, an electrical engineer at Purdue University in Indiana, and lead author of the latest study. It doesn't just prevent eavesdroppers from reading your data they wouldnt even know there was any data there to hack.
Last year, a team led by Alexander Gaeta, an optical physicist at Cornell University in Ithaca, New York, built the first working temporal cloak by manipulating laser pulses3. But the time windows...
(Excerpt) Read more at nature.com ...
This isn’t new, of course. All of Obama’s records have been in a temporal hole for years.
And he learned from Stalin and Mohammed, who made temporal holes with primitive tools like whips, car batteries and chains.
Great, but it sounds like you have to plan it all out in advance. What I always want to hide is the stuff I said the night before...
Don't forget airbrushes.
Trouble is it only works in 2 dimensions.....
Here it is spitting out his BC from the past from the slot in the machine....
The NSA monitors and records everything and the cryptographers develop a new means to block them and then the NSA ... and so forth. The race goes on.
So start the afternoon before... ;-P
oh boy a published article in Nature. I guess Science wouldn’t take it.
I am always dubious about papers that claim great things and fantastic measurements in these types of magazines. When they really have something expect to see it in a peer reviewed journal from the APA or IEEE