Sunday, September 30, 2012

QUANTUM COMPUTERS


A NEW CLASS OF COMPUTER- QUANTUM COMPUTER
Engineers working on quantum device

The basic building blocks of quantum computers are quantum bits, or “qubits.” Unlike today’s digital computers, which process information in a binary fashion based on logic states of “on” and “off,” a qubit can for brief periods represent multiple states simultaneously. A qubit has some similarities to a classical bit, but is overall very different. Like a bit, a qubit can have two possible values—normally a 0 or a 1. The difference is that whereas a bit must be either 0 or 1, a qubit can be 0, 1, or a superposition of both.

According to scientists the quantum computers are supposed to emerge during this decade. The successful construction of one of the basic building block of modern quantum computing is to prove how soon they are going to aid to the revolution of new world. Quantum computing will open new computing vistas to address a new class of problems. But there is also a belief that quantum computing will not replace the conventional computers that are now carried in the pockets of more than half the world’s population. One of the reason behind this fact is that quantum computing approaches only worked when temperature were cooled to near absolute zero.

Though there are only a handful of workable algorithms designed to run on quantum computers, scientists say their application may prove vastly more useful than today’s technology in simulating a wide variety of biological, chemical and physical systems. That means they could become the standard tool for a wide range of new industries, like drug and material design.

The quantum computing can be the much faster than the today’s computers. It is due to the fact that quantum computing will be using the algorithms like- integer factorization using Shor’s algorithm or the simulation of quantum many-body systems. Thus Quantum computing will potentially lead to a new generation of supercomputers that are not intended to replace today’s machines but will instead open new computing vistas, from drug and material to code breaking, by offering speed to address a new class of problems.

The competition to build working quantum computer is increasing internationally. The construction of qubits by Australian scientist has given a significant lead in the construction of quantum computers. “Imagine if you could start building your molecule or your material on a computer and then completely simulate its behavior.”  This is the main working motto for the construction of such quantum computers. Furthermore, the significance of the quantum computers are vast and have a great importance for creating the revolution in the world.

The nanotechnology and quantum mechanics is the today’s most leading discoveries having a infinite number of applications. Nanotechnology along with quantum mechanics will lead the new generation. The nanotechnology has also shown sign of creating transistors of atomic level in the future. The developments of these streams are at peak level. Development of one will lead the development of other and together will shape the new world.

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