Posted: 15th October 2015 by admin in Uncategorized
A major breakthrough has given these Australian engineers everything they need to build a new generation of super-fast computers
Humankind is hot on the trail to designing and building the next-generation of super computers, called quantum computers.
Capable of easily cracking encryptions that would be impossible with the average classical computer, a quantum computer will not only revolutionize computing speed but also render most common-day encryption methods obsolete.
Now, a team of scientists at the The University of New South Wales (UNSW) in Sydney, Australia and Keio University in Japan have just made a significant breakthrough in the field using a special material: Silicon.
By modifying a standard silicon transistor — the backbone of all modern-day electronic devices — the scientists have performed the world’s first calculation with what are called quantum bits, instead of classical bits, with a silicon-based material.
Read more at BusinessInsider.com.
Posted: 22nd July 2015 by admin in Uncategorized
Cosmic Scale Explanation
He [John Wheeler] asks us to imagine a star emitting a photon billions of years ago, heading in the direction of planet Earth. In between, there is a galaxy. As a result of what’s known as “gravitational lensing,” the light will have to bend around the galaxy in order to reach Earth, so it has to take one of two paths, go left or go right. Billions of years later, if one decides to set up an apparatus to “catch” the photon, the resulting pattern would be (as explained above in the double slit experiment) an interference pattern. This demonstrates that the photon took one way, and it took the other way.
One could also choose to “peek” at the incoming photon, setting up a telescope on each side of the galaxy to determine which side the photon took to reach Earth. The very act of measuring or “watching” which way the photon comes in means it can only come in from one side. The pattern will no longer be an interference pattern representing multiple possiblities, but a single clump pattern showing “one” way.
What does this mean? It means how we choose to measure “now” affects what direction the photon took billions of years ago. Our choice in the present moment affected what had already happened in the past….
This makes absolutely no sense, which is a common phenomenon when it comes to quantum physics. Regardless of our ability make sense of it, it’s real.
Posted: 18th July 2015 by admin in Uncategorized
Two separate teams of researchers have found evidence for a theorized type of massless particle known as a “Weyl fermion.” The discovery was made by scientists at Princeton University in New Jersey and the Massachusetts Institute of Technology, and could herald a whole new age of better electronics.
Weyl fermions were first hypothesized by German mathematician and physicist Hermann Weyl in 1929. They were proposed as being among the building blocks of subatomic particles, and were also said to be unique in that they would have no mass and also behave as both matter and antimatter – which has the same mass but opposite charge and other properties to regular matter – inside a crystal.
Initially, they were wrongly identified as neutrinos, until it was found in 1998 that neutrinos have a very small amount of mass. Now the researchers say they have solved the 85-year-old mystery for good. The research by both teams was published in the journal Science.
Posted: 22nd May 2014 by admin in Uncategorized
Google has made a virtual quantum computer available for use online at http://qcplayground.withgoogle.com/#/home.
Posted: 4th February 2014 by admin in Uncategorized
Cartoon of quantum error correction with three quantum bits. First, the state is encoded in an entangled state of three quantum bits. Then the possible occurrence of errors is detected by comparing the three quantum bits. Finally the error is corrected. Credit: Fundamental Research on Matter (FOM)
Read more at: http://phys.org/news/2014-02-physicists-quantum-errors.html#jCp
Posted: 17th November 2013 by admin in Uncategorized
It’s a big month for quantum computing. Earlier today we reported that scientists had sustained a quantum computer for 39 minutes at room temperature instead of having to cool it to near-absolute-zero first, meaning we are that much closer to Ludicrous Speed consumer computers. Now it has come to light that photons can be measured, measured, and measured again–without having to absorb and thus destroy them. The upshot? It’s a big month for quantum computing.
Normally when photons–packets of light such as might be used as inputs in a quantum computer–are measured (detected), you have to do it with a telescope camera or a particle collider. These technologies destroy the photon so you can only detect it once. But as shown in an article published Nov. 5 in Science, we can now detect a photon by reflecting it off a superposed atomic nucleus.
A superposed atomic nucleus is one that has been induced (through magnets or some other force) to exist in two energy states at the same time. It is either spinning both “up” and “down”, or–in the case of the demonstration discussed in this article–in two different energy configurations at the same time. Briefly and crudely speaking, that’s like saying a particular piece of fruit is both an apple and an orange at the same time.
Posted: 17th November 2013 by admin in Uncategorized
So these findings, published in this week’s Science, are pretty impressive: at -452F, the researchers were able to create qubits from a novel material that survived for three hours. More importantly, they were able to bring them to room temperature for 39 minutes without destroying their quantum state. Since all the qubits were in the same quantum state, they couldn’t be used for computing — a functional quantum computer would operate based on different states between qubits. But this is a huge step toward making quantum computing a reality, and not just a shockingly cold one.
Posted: 20th September 2013 by admin in Uncategorized
A new geometric object, the amplituhedron, forms the basis for a new way of mapping quantum probabilities using simple formulae to calculate volumes of the jewel like object.
Artist’s rendering of the amplituhedron, a newly discovered mathematical object resembling a multifaceted jewel in higher dimensions. Encoded in its volume are the most basic features of reality that can be calculated — the probabilities of outcomes of particle interactions.
Please see A Jewel at the Heart of Quantum Physics by Natalie Wolchover for an excellent review of this amazing formulation that massively reduces the complexity of quantum calculations.
Posted: 24th August 2013 by admin in Uncategorized
How does one verify whether a QC is actually doing what it’s claimed to do when one is not allowed to look inside? A new proposal is described as “the Bell test on steroids” (named after Bell’s Theorem).
see the article her – Wired.com