Atlantis Online
March 28, 2024, 05:42:37 pm
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Scientists to drill beneath oceans
http://atlantisonline.smfforfree2.com/index.php/topic,8063.0.html
 
  Home Help Arcade Gallery Links Staff List Calendar Login Register  

Scientists 'reverse time' with quantum computer

Pages: [1]   Go Down
  Print  
Author Topic: Scientists 'reverse time' with quantum computer  (Read 1358 times)
0 Members and 78 Guests are viewing this topic.
Black Dog Sun, the End of the Ancient World, Antediluvian X
Superhero Member
******
Posts: 2563



« on: March 14, 2019, 08:58:42 pm »

Scientists 'reverse time' with quantum computer
Posted on Wednesday, 13 March, 2019




One step closer to Back to the Future ? Image Credit: CC BY-SA 3.0 Ed g2s
The remarkable achievement has been likened to having a scattered rack of pool balls rewind back in to place.
The world of quantum physics can be baffling at the best of times and this latest accomplishment, which was achieved by a team of scientists from Russia, Switzerland and the US, is no exception.

The experiment involved the use of a rudimentary quantum computer made up of quibits - basic units of information that can either be one, zero or a mixture (superposition) of both.

An 'evolution program' was run to scatter the quibits in to increasingly complex patterns - a process comparable to a rack of pool balls being struck by the cue ball and scattered across the table.

To achieve 'time reversal', the scientists then used a separate program to modify the state of the quantum computer so that the quibits were then returned to their original ordered state.

In our pool analogy - this would be like all the balls unscattering and re-forming in to a perfect triangle.

"We have artificially created a state that evolves in a direction opposite to that of the thermodynamic arrow of time," said lead researcher Dr Gordey Lesovik.

While the breakthrough is unlikely to make Doc Brown's time-traveling DeLorean a reality anytime soon, it should ultimately prove invaluable in the field of quantum computing.

The next step will be to reduce the error rate by improving the sophistication of the technology.

"Our algorithm could be updated and used to test programs written for quantum computers and eliminate noise and errors," said Dr Lesovik.

https://www.independent.co.uk/life-style/gadgets-and-tech/news/time-reverse-quantum-computer-science-study-moscow-a8820516.html
Report Spam   Logged

Share on Facebook Share on Twitter



Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by EzPortal
Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum
Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy