"Hacking the Cosmos" --Photon-Based Quantum Computing
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May 13, 2013

"Hacking the Cosmos" --Photon-Based Quantum Computing

 

           Chandra_ngc4631

 

"Quantum computers can efficiently render every physically possible quantum environment, even when vast numbers of universes are interacting. Quantum computation is a qualitatively new way of harnessing nature," according to David Deutch, an Israeli-British physicist at the University of Oxford who pioneered the field of quantum computation and is a proponent of the many-worlds interpretation of quantum mechanics. Quantum computers, says Deutch, have the potential to solve problems that would take a classical computer longer than the age of the universe.

In a new development, scientists from the Group of Philip Walther from the Faculty of Physics, University of Vienna succeeded in prototyping a new and highly resource efficient model of a quantum computer -- the boson sampling computer. Quantum computers work by manipulating quantum objects as, for example, individual photons, electrons or atoms and by harnessing the unique quantum features.

Not only do quantum computers promise a dramatic increase in speed over classical computers in a variety of computational tasks; they are designed to complete tasks that even a supercomputer would not be able to handle. In recent years, there has been a rapid development in quantum technology the realization of a full-sized quantum computer is still very challenging.

While it is still an exciting open question which architecture and quantum objects will finally lead to the outperformance of conventional supercomputers, current experiments show that some quantum objects are better suited than others for particular computational tasks.

The huge advantage of photons -- a particular type of bosons -- lies in their high mobility. The research team from the University of Vienna in collaboration with scientist from the University of Jena (Germany) has recently realized a so-called boson sampling computer that utilizes precisely this feature of photons. They inserted photons into a complex optical network where they could propagate along many different paths.

"According to the laws of quantum physics, the photons seem to take all possible paths at the same time. This is known as superposition. Amazingly, one can record the outcome of the computation rather trivially: one measures how many photons exit in which output of the network," explains Philip Walther from the Faculty of Physics.

The Daily Galaxy via University of Vienna

 

 

Comments

I posited this years ago when trying to show that time travel was impossible which I ended up calling the 'Flip Card Model of the Universe'

I theorized under the above notion that all events that have ever taken place have been 'recorded' on photons as the 'memory' of the Universe.

"Quantum computers can efficiently render every physically possible quantum environment, even when vast numbers of universes are interacting.

I find it interesting that Quantum computers can validate the existence of "vast numbers" of universes that interact with each other. Galaxies are known to cluster together and form dwarf mega-galaxies, and that galaxies can consume other galaxies. Can Quantum computing validate infinity if time, space and matter are infinite, but the sum of the universe is finite?

A computer can simulate the end of civilization by the depletion of resources. The human mind can create new resources that did not exist before the computer simulation was programmed to consider them in the first place.This is an example of how it is wrong to rely on computers to be used to determine any kind of governing policy.

Jack....this post is based on the same hard news source as that used by Phys.org and SA et al.

We are such a speck on the universes' ass, yet we think we are the pimple, one about to be popped? Not forever but it seems that way.


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