Google, NASA: Our quantum computer is 100 million times faster than normal PC

Two years ago Google and NASA went halfsies on a D-Wave quantum computer, mostly to find out whether there are actually any performance gains to be had when using quantum annealing instead of a conventional computer. Recently, Google and NASA received the latest D-Wave 2X quantum computer, which the company says has “over 1000 qubits.” At an event yesterday at the NASA Ames Research Center, where the D-Wave computer is kept, Google and NASA announced their latest findings – and for highly specialised workloads, quantum annealing does appear to offer a truly sensational performance boost. For an optimisation problem involving 945 binary variables, the D-Wave X2 is up to 100 million times faster (108) than the same problem running on a single-core classical (conventional) computer. Google and NASA also compared the D-Wave X2’s quantum annealing against Quantum Monte Carlo, an algorithm that emulates quantum tunnelling on a conventional computer. […] Read More

Experiment Confirms That Reality Doesn’t Exist If You’re Not Looking at It

According to a well-known theory in quantum physics, a particle’s behavior changes depending on whether there is an observer or not. It basically suggests thatreality is a kind of illusion and exists only when we are looking at it. Numerous quantum experiments were conducted in the past and showed that this indeed might be the case. Now, physicists at the Australian National Universityhave found further evidence for the illusory nature of reality. They recreated the John Wheeler’s delayed-choice experiment and confirmed that reality doesn’t exist until it is measured, at least on the atomic scale. Thought-provoking findings Some particles, such as photons or electrons, can behave both as particles and as waves. Here comes a question of what exactly makes a photon or an electron act either as a particle or a wave. This is what Wheeler’s experiment asks: at what point does an object ‘decide’? The results of the […] Read More