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Category: quantum physics – Page 803

The University of Rochester’s new quantum enigma machine is taking data encryption to a whole new level. This means shorter encryption keys and more difficult message interception.

Need a way to prevent the enemy from intercepting and deciphering your message?

American mathematician Claude Shannon, AKA the “father of information theory” had a way to do it. He came up with a binary system that could transmit messages under three conditions: the key is random, used only once, and is at least as long as the message itself. A long key, though, sounds like a pain.

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Condensing electrons into Quantum Wires to advance QC on multiple devices as well as other areas of technology.

Researchers have observed quantum effects in electrons by squeezing them into one-dimensional ‘quantum wires’ and observing the interactions between them. The results could be used to aid in the development of quantum technologies, including quantum computing.

Scientists have controlled electrons by packing them so tightly that they start to display quantum effects, using an extension of the technology currently used to make computer processors. The technique, reported in the journal Nature Communications, has uncovered properties of quantum matter that could pave a way to new quantum technologies.

The ability to control electrons in this way may lay the groundwork for many technological advances, including quantum computers that can solve problems fundamentally intractable by modern electronics. Before such technologies become practical however, researchers need to better understand quantum, or wave-like, particles, and more importantly, the interactions between them.

Continue reading “A tight squeeze for electrons: Quantum effects observed in ‘one-dimensional’ wires” | >

Scientists have identified a new method in understanding superconductors, and what one should do to make higher-temperature superconductors even at room temperature. This is certainly a huge deal as we continue to look at ways to build QC machines and devices. Something that my friends at Google should be interested in.

“Learning from this model, we can understand what’s really going on in these superconductors, and what one should do to make higher-temperature superconductors, approaching hopefully room temperature,” says Martin Zwierlein, professor of physics and principal investigator in MIT’s Research Laboratory of Electronics. Credit: Illustration: Christine Daniloff/MIT

If you bottle up a gas and try to image its atoms using today’s most powerful microscopes, you will see little more than a shadowy blur. Atoms zip around at lightning speeds and are difficult to pin down at ambient temperatures.

If, however, these atoms are plunged to ultracold temperatures, they slow to a crawl, and scientists can start to study how they can form exotic states of matter, such as superfluids, superconductors, and quantum magnets.

Continue reading “For first time, individual atoms seen keeping away from each other or bunching up as pairs” | >

Researchers have levitated a tiny nanodiamond particle with a laser in a vacuum chamber, using the technique for the first time to detect and measure its “torsional vibration,” an advance that could bring new types of sensors and studies in quantum mechanics.

The experiment represents a nanoscale version of the torsion balance used in the classic Cavendish experiment, performed in 1798 by British scientist Henry Cavendish, which determined Newton’s gravitational constant. A bar balancing two lead spheres at either end was suspended on a thin metal wire. Gravity acting on the two weights caused the wire and bar to twist, and this twisting — or torsion — was measured to calculate the gravitational force.

In the new experiment, an oblong-shaped nanodiamond levitated by a laser beam in a vacuum chamber served the same role as the bar, and the laser beam served the same role as the wire in Cavendish’s experiment.

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Another (more in depth) on Lockheed’s efforts on Space Travel leveraging Quantum Entanglement.

It’s called quantum entanglement, it’s extremely fascinating and counter to what we believe to be the known scientific laws of the universe, so much so that Einstein himself could not wrap his head around it. Although it’s called “quantum entanglement,” though Einstein referred to it as “spooky action at a distance.”

Recent research has taken quantum entanglement out of the theoretical realm of physics, and placed into the one of verified phenomena. An experiment devised by the Griffith University’s Centre for Quantum Dynamics, led by Professor Howard Wiseman and his team of researchers at the university of Tokyo, recently published a paper in the journal Nature Communications confirming what Einstein did not believe to be real: the non-local collapse of a particle’s wave function. (source)(source), and this is just one example of many.

Continue reading “Lockheed Executive Blows Lid Off of Secret Government Space Travel (Quantum Entanglement)” | >

A couple of years ago, researchers at NASA’s Johnson Space Centre discovered a thruster system which actually generates thrust, despite requiring absolutely no propellant. The implications of this discovery are far-reaching; applications for space flight and other technologies which require propulsion could one day become far cheaper, allowing space exploration to expand exponentially. The existence of this technology also further validates the fact that energy can be derived from tapping into the quantum vacuum, also known as “zero-point.”

Bottom line is that space is not empty, and the energy which lies within it can be used. This was experimentally confirmed when the Casimir Effect illustrated zero point or vacuum state energy, which predicts that two metal plates close together attract each other due to an imbalance in the quantum fluctuations (source)(source).

The propellant-less thruster is called the Cannae Drive, invented by Guido Fetta, and was tested by NASA over an eight day testing campaign that took place in August of 2013. It’s also known as the EM drive. It showed that a small amount of thrust was achieved inside a container, again, without the use of any fuel. The results were then presented at the 50th Joint Propulsion Conference in Cleveland, Ohio in July the next year.

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If all goes according to the plan, tech giant Google might be able to present the world with a phenomenally powerful quantum computer by the end of 2017.

Googler John Martinis and his team of researchers have been working on how quantum computers could be worked out for a long duration of 30 years. And now, it seems, they’re finally on the verge of making the wonder computer a reality. Since the computer would harness the unusual properties of quantum physics that take birth in extreme circumstances like those on the ultra-cold chip, the wonder computer would allow a Google coder to run the calculations he/she requires in a short interval of time like in the duration of a tea/coffee break. This would be quite impressive as the supercomputers of today would take millions of years to run the same calculations. This means, the quantum computer would be able to outperform conventional computers—a concept known as quantum supremacy. But, the Google software, which has been developed on ordinary computers to answer questions or drive cars, is still capable of becoming more intelligent.

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Read a little further into the paper, and things get really weird. If the equations of quantum mechanics must be altered in accordance with the new research, then it will give rise to a new and very curious definition of time.

Time is, essentially, a “crystal”—a highly organized lattice of discrete “particles,” or regularly repeating segments.

“The physical universe is really like a movie/motion picture, in which a series of still images shown on a screen creates the illusion of moving images,” said Mir Faizal of the University of Waterloo and the University of Lethbridge in Canada, and lead author of the paper.

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Nice article; however, disappointed that the author expanded the exploration of programming in Quantum to include Google, MIT, U. Sydney, etc. who all have been exploring the programming on QC. D-Wave indeed is doing a lot in this space and has been even training numerous US Government personnel on QC; just would be interesting to learn more about the advances in this space from other players who have been sharing for several months their breakthroughs in programming QC.

The jury is still out when it comes to how wide-ranging the application set and market potential for quantum computing will be. Optimistic estimates project that in the 2020s it will be a billion-dollar field, while others expect the novelty will wear off and the one company behind the actual production of quantum annealing machines will go bust.

Ultimately, whichever direction the market goes with quantum computing will depend on two things. First, the ability for applications of sufficient value to warrant the cost of quantum systems have to be in place. Second, and connected to that point, is the fact that enough problems can be mapped to these machines—a tricky problem that if not solved, will lead to a limited ecosystem of capabilities and, of course, developers.

There is no doubt D-Wave understands this. The company is getting in front of those challenges by hosting quantum computing programming courses designed to onboard new developers. As one might imagine, however, determining the right background for participants is as nebulous as the future of the quantum computing ecosystem.

Continue reading “One thought on “So, You Want to Program Quantum Computers…”” | >

Rotating black holes can implement quantum gates and quantum circuits, like Bell states, which are quantum counterparts of the classical computer programing.

The black holes sparked the public imagination for almost 100 years. Their presence in the universe has been debated for long; however, the detection of X-ray radiation coming from the center of the galaxies has put an end to the discussion and undoubtedly proven their existence.

The vast majority, if not all, of the known black holes were unveiled by detecting the X-ray radiation emitted by the stellar material around them. Black holes emit X-ray radiation, light with high energy, due to the extreme gravity in their vicinity. X-ray photons emitted near rotating black holes not only exposed the existence of these phantom-like astrophysical bodies, but also seem to carry hidden quantum messages.

A recent article posted in the pre-printed arXiv (“Photonic Bell states creation around rotating black holes”) argues that X-ray radiation coming from fast spinning black holes encompasses quantum information.

Continue reading “Quantum information encoded in spinning black holes” | >