Sunday, September 14, 2014

Quantum Computing

Scientists achieved new advances in research with quantum computing. Now, computers can resolve problems that then never could.
“Theories show how computing devices that operate according to quantum mechanics can solve problems that conventional (classical) computers, including super computers, can never solve.” A. P. Lund, A. Laing, S. Rahimi-Keshari, T. Rudolph, J. L. O’Brien, T. C. Ralph. Boson Sampling from a Gaussian State. Physical Review Letters, 2014; 113 (10).
Technology is advancing ever more and quantum computing is the future for computer science, recent research shows that we can solve many problems that we could not before. A quantum computer is a computation system that use of quantum-mechanical to perform operations on data. Quantum computation superposition of states (many states), unlike classical computers use binary digits (only two states).
If analyzed, quantum computing can be seen as a natural process of evolution of computers, since 1950, with the advent of transistors, the computers become fasters and their components get smaller. The physical boundary of these components is precisely the quantum size. The problem is that the quantum scale knowledge of classical physics cannot be applied.

Remember that for most conventional applications today's computers are efficient. But for applications that require intensive processing (for example, artificial intelligence, encryption, search in unordered lists, factoring large numbers) the quantum computer is the most promising option. According to the physicist Ivan Oliveira, Center for Research in Physics (CBPF), "In theory, Qubits based computers could solve problems that today would take billions of years in a matter of minutes."


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