Computation (Information processing) is one of the vital needs of modern world. Computers have made the process of computing a lot easier. The evolution of computation began with abacus, then the world moved onto gears, valves, relays, transistors and now, we are in the IC age. In the IC age our computers gets twice faster every 18 months (Moore’s Law).If we are able to keep the pace it is expected that by 2020 we’ll hit the quantum level of miniaturization. In other words we start making circuits in the nano scale (1 - 100nm).
The problem with the nano scale is the fact the classical concepts of physics and techniques of electronics will no longer work! Does it sound like the world of computers is coming to a halt…? Not really, where classical physics fails, Quantum Mechanics survives! That’s why we need a radically new technology to replace the existing classical computing, it is – Quantum Computing
