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Quantum computing, just a dream?


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- But the most important and promising advances in “quantum computing” to active investors in early stage of start-up’s today is using quantum computers to modeling the behavior of quantum world, in other words, to know the nanoscale before we build it. The quantum properties at nanoscale of heat transmit, micro-transistors, quantum electric sources and so on. Then, it will be the day when we’ll say that the nanoscale revolution has just arrived. Learn more...

Have you ever-heard talk about “quantum computing”? Well, this is a promising trend on new computing systems. The quantum properties are fascinating and allow dreaming not only to science fiction writers; even serious researchers are able to do it. Moreover, to investors, “quantum computing” allow to dream too?

We can talk for a minutes about this topic. The two most important items that researchers are focused today in this field are:

- Entanglement particles. Two particles, which can be separated even by an infinite distance, one of them determines the quantum state of another. If you get a measurement of one of them and get one quantum value, another particle will show, necessarily the quantum value that theory establishes. You can consider that the value of measurement or perhaps the sequence of events was written previously. Or perhaps we can find an infinite speed on transmitting signals. And due to this property, in the future we will be able to perform computers which will be able to process huge quantity of information in nanoseconds. So, you should see as Jurassic your last computer desk provided with the most advanced Intel, or AMD, or perhaps your beautiful Mac. In this subject we recommend you visit the web of Prince of Asturias foundation who awarded in 2006 to Mr. Juan Ignacio Cirac, “director of the Max Plank Institute of Quantum Optics in Garching, Germany, for his worldwide leadership in proposing and developing quantum computing, a new science of the 21st century that comes from combining two of the most outstanding creations of the 20th century.”

- Another subject in this field in wich quantum computing is advancing so fast is on saving and retrieving information from simple quantum systems, built with a houndred or thousand of particles. In the quantum world, a particle with a quantum variable, can be measured, for instance, within the state “1” or within the state “0”. While you don’t act measuring it, the particle has to be in an intermediate state between “1” or “0”. This is as today we say a “qbit”. If you have a system with thousand particles, this system, while you don’t collapse their state (or wave function), may be within one of their 2exp(1000) possible states. 2exp(1000) is equal to 10exp(300), a number greater that the total number of particles in the Universe. The quantity of information that you can save in sets of 100 particles is very, very great. If you can develop a laser source to pick up every particle to read their state or assign a concrete state, you will have a big computer. Perhaps Google try to buy it to you. Think about it. But if you collapse the wave function of one of your sets performing a measuring over it, you will lose the rest of 10exp(300)-1 possibilities of information. However, this arrangement is appropriate, scientist say, to get a huge number of candidates to test the solution to complex problems, problems called ‘NP’. The problems that can be solved thanks to an algorithm are called ‘P’. Nevertheless, ‘NP’ problems cannot be solved with an algorithm, because you can know that the problem is solved only when you have the solution in your hands. In addition, it is not probable that you can get the solution in a human period. Perhaps you will be dead before. For instance, a problem belong to NP class, is cracking the security keys of systems informatics by hackers. Today scientist and engineers are talking about magic properties of quantum computing, infinite speed to transmit signal, reducing until 0 the time for processing of infinite problems NP and so on. Moreover, all of this it is all right, but if you must translate investment in researching into money terms, perhaps you would think that this is just a gamble. Do not worry. Please, visit http://www.sciam.com/article.cfm?id=the-limits-of-quantum-computers to learn more about it. The great article by Scott Aaronson.

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