Here are two pieces for your info. First one shows a great improvement in the Quantum computer chips. Second shows that when we totally harness the power of quantum chip then the power of quantum computation of a regular home computer will be equal to that of current computer in the size of all of our universe. This statement is from Seth Lloyd of MIT. This is real revolution of civilization. This kind of brain power is enough to free our world from the wage slavery and money and all evils come with it. When we have this kind of vast brain power we can solve all the problems facing humanity today and in the future peacefully. War and terror will be on the top of this list of evils to be eliminated by this kind of immense brain power. There will be no room for stupidity with such brain power. It is strange that this quantum computer is seen and run as the arms race of the 21.st Century by the world governments. This is so stupid and blindness that cannot see the next step. Just imagine this kind of brain power given to the service of internet users connected to each other like a global brain. It will unite all humanity and remove all borders and solve all problems humans face and there will not be any room for any struggle between humans. No wage slavery any more. Humans will only be doing fun work if they want and travelling into space to see what is out there.
Quantum computer chips pass key milestones
Quantum computer users may soon have to wrestle with their own version of the “PC or Mac?” question. A design based on superconducting electrical circuits has now performed two benchmark feats, suggesting it will be a serious competitor to rival setups using photons or ions.
“The number of runners in the race has just gone up to three,” says Andrew White of the University of Queensland, Australia, who builds quantum computers based on photons and was not involved in the new result.
The defining feature of a quantum computer is that it uses quantum bits or qubits. Unlike ordinary bits, these can exist in multiple states at once, known as a superposition. They can also be entangled with each other, so their quantum states are linked, allowing them to be in a sort of “super” superposition of quantum states.
This means quantum computers could perform multiple calculations simultaneously, making them much faster than ordinary computers at some tasks.
Previously, setups using photons or trapped ions as qubits have made the most headway in early calculations. Now Matteo Mariantoni of the University of California, Santa Barbara, and colleagues have boosted the computing power of a rival design, first demonstrated in 2003, that uses tiny, superconducting wires instead.
Mariantoni’s team used a chip embedded with micrometre-sized loops of wire made of a mixture of aluminium and rhenium. When these wires were cooled to within a whisker of absolute zero, they became superconducting, meaning their electrons coupled up as structures called “cooper pairs”.
The pairs in each wire were made to resonate as an ensemble. Because each ensemble could exist as a superposition of multiple different resonating states, they acted as qubits.
Mariantoni’s team entangled these qubit wires using a second type of wire, known as a bus, that snaked all around the chip. First they tuned this bus so that it took on some of the quantum information in one of the qubits. Then they transferred this information to further qubit wires, thus entangling the qubits.
The design made strides in solving calculations often used as benchmarks for testing quantum computers’ capabilities.
It ran a calculation known as the quantum Fourier transform, which is a central component of the most famous quantum algorithm, known as Shor’s. If Shor’s were run on a system with enough qubits, it would allow huge numbers to be factorised quickly. That has not happened yet, but if it ever did, it would cause many current encryption systems to break down, since they rely on the fact that ordinary computers can’t do this.
The researchers also used entangled qubits to create a system known as a “Toffoli OR phase gate”, which is a critical step towards building codes that do quantum error correction. This required entangling three qubits – a first for superconducting quantum circuits. “Getting three bits to play well together is hard,” says White.
But the reason the new result is exciting is that it could be hard to scale up these systems, which tend to be delicate and require specialised equipment, while the superconducting system uses chips like an ordinary computer. “The beautiful thing about a solid circuit is that it’s something you can write using lithographic technology,” says White. “It looks much easier than say ion traps or photonic approaches.”
But future quantum computers might not come down to an either/or choice like that between a Mac and a PC. Instead, true to their quantum nature, they may be “superpositions” of different designs. “I don’t think anybody knows what the best architecture will be,” says White. “Probably we will end up using hybrids of the various approaches.”
Journal reference: Science, DOI: 10.1126/science.1208517
Quantum Computing – An arms race of the 21st century
Across the world physicists and computer scientists are taking part in government funded projects to realize the first working quantum computer, possibly unleashing computers so powerful they can communicate across space and time, or crack all conventional computer encryption in a heartbeat or two. Making your secure internet traffic totally exposed, as well as providing the one that has the technology, with supreme information security. Leaving us with the question about who is going to be the next information superpower?
One government agency that is heavily involved in the funding and development of Quantum Computers is the shadowy american DARPA, or Defense Advanced Research Projects Agency. Their web-page states:
“DARPA’s mission is to maintain the technological superiority of the U.S. military and prevent technological surprise from harming our national security by sponsoring revolutionary, high-payoff research bridging the gap between fundamental discoveries and their military use”.
It is the agency that the american government turns to when the going gets tough or the study is just so weird that no-one will touch it. DARPA is no small fish in the world of technology. It kick-started the american space-program, developed Stealth technology and gave us GPS, as well as making what was to become the Internet. During the past few years, DARPA has issued several funding opportunities to the best scientists in the field of quantum computing, and results are as always, classified. And they will probably continue to be just that for many years to come.
But like all defense agencies, there is a catch. All efforts will in the end sum up to helping the state kill it`s enemies more effectively. The 2010 US defense budget amounted to 664 billion dollars, which means that they probably have some dollars left over to spend on scientists starved for funding in the years to come.
Nick Turse, a graduate student writing about war-crimes, lists a few inventions in his article about DARPA :
The projects are often some of the most lethal ever conceived. Over the years, DARPA research has led to a plethora of products designed to maim and kill, among them the: M-16 rifle, Hellfire-missile-equipped Predator drones, stealth fighters and bombers, surface-to-surface artillery rocket systems, Tomahawk cruise missiles, B-52 bomber upgrades, Titan missiles, Javelin portable “fire and forget” guided missiles and cannon-launched Copperhead guided projectiles, to name but a few”
China is one country that has ambitions to stay in the race for quantum military technologies. Especially in the field of quantum entanglement have they made considerable progress. Albert Einstein called it “spooky action at a distance,” because it seems to defy both time and space. In theory this technology makes it very hard to tap into communications without destroying the message and thereby making the eavesdropping official. In terms of intelligence and military uses, these kinds of technologies are wet dreams for global powers like USA and China, and they will most likely not give in before they are realized. The government files intercepted and cracked by Wikileaks last year would have been nigh impossible if these technologies had been operational.
There are also many civilian projects going on at Universities in many countries, like Clarendon Laboratory at Oxford or the Centre for Quantum Computing at Cambridge, both in the UK. Civilian efforts have a hard time matching the funding resources that states like America possess, and cannot do research with the same intensity. They are however a peek-hole into technologies and powers to look out for in the future.
The most common way to secure internet traffic today, is the RSA encryption algorithm. Most people that shop or send emails over the internet have used this method to secure the information sent, often automatically and without the user having to press any buttons. It operates by using a specific key or pattern that codes the information in a specific manner, for example by reducing every word with 5 letters to 3 letters and substituting the letters with numbers in a given sequence. The receiver has the same key and only needs to reverse the encoding sequence, and he/she has the original message securely on the computer. If one were to break the most advanced RSA encryptions today, it would take about 1,500 years on a desktop computer, or a couple of years with hundreds of the most powerful computers in the world. Not practical in other terms.
Working quantum computers have been built, but not big enough to take on any real challenges like decrypting secret messages just yet. But when the technology is completely operational it will completely trash classical computers, and make computer security an entirely different ball-game. Scientists have predicted a wait of about 10-20 years before we have a quantum computer for civilian use.
Computers are basically calculators, they turn all kinds of information into numbers and can then manipulate the information by changing their numeral values in a predetermined way. The letters on this page has various numeral values imbedded in the software on our computers. Ordinary computers calculate these numbers in a linear way. They take one value and adds it together with another. 1+2=3 is a simple example of this, the classical computer takes two separate numbers and adds them together producing an answer. Here we basically have five pieces of information, including the + and the = signs. The Quantum computer basically operate using the exact same principles, apart from the fact that the latter uses single molecules instead of the tiny little electrical switches that ordinary computers use.
The molecules that Quantum technology uses have two properties that makes them beat any classical computer in terms of power and speed. The first is that the molecules can be in a state of Superposition, being in two places at the same time. The other is quantum entanglement, that connects these superpositions together so that what happens to the first, also happens to the second, instantly and with no computation needed to operate the entanglement. This means that we can make the molecule “carry” both numbers at the same time because of the fact that it can be in two places at the same time, each position reflecting one value. The quantum computer can feed both the 1 and 2 into the calculator at the same time, making it vastly more powerful than an ordinary computer.
What makes it so extremely powerful is the power of the square. Two quantum bits (qbits) can operate 4 values at the same time, three operates 8 and so on. Before 50 qubits you have trillions of values at the same time.
The most modern commercial computers today have about 600-700 million electrical switches it can use to calculate numbers with. In comparison one gram of hydrogen gas, has 6,022 000 000 000 000 000 000 00 0 atoms in it. One gram..
Imagine computers capable of calculating how virus is going to evolve in the future, simulations of global warming and weather forecasts would be much much more detailed. Medical, Social and Physical sciences would gain a very powerful tool in having new levels of resolution in data for research.
Seth Lloyd, a leading scientist in the field of quantum computing at MIT, said that if we some day could turn all the molecules in the computer that you are typing on, into information processing bits, it would be much much more powerful than the human brain in terms of raw computing power, potentially being capable of computing tasks so immense that a classical computer the size of the Universe could not repeat it. The technology is however hard to harness, atoms and molecules are not very cooperative and tend to whizz away at the smallest touch. The technology is widely regarded as being the next step in computing, who is able to control it first, remains to see.