Quantum Computers

There is a hectic research going on to make "brainy computers". The idea of quantum computer is based on quantum physics. Qunatum computers makes use of distinctive quantum mechanical properties like "superposition" and "entanglement" to perform operations on data. The information processing unit in quantum computer is Qubit (Quantum bit) unlike logical bit of classical computer. Qubit is not binary, its a superimposed auantum mechanical states that has taken over the atomic state. Particles with "+" or "-" and spin up or spin down is taken as logic states 0 or 1. In quantum computers, the quantum gates make equal number of inputs and outpuits unlike the logic gates which has two inputs and single output + waste heat. A quantum bit carries more info than a classical bit in the sense that the electron is at superposition state states rather than just being at low or high state. Though this technology is far-fetched now, scientists have been successful in inventing quantum cryptography in the area of data security. Maybe in a few more years quantum computers can come into being but it wont replace classical computers cos still quantum physics is yet to replace classical physics. They just co-exist.

Superposition: Two electrons overlap with eachother to make a combined waveform of amplitude probabilities.

Entanglement: Here the systems are correlated that does not involve force and the restriction of the speed of light is not applicable.

P.S.: If you think that i copy pasted this from some site then you are wrong. This is an adaptation from a techie journal.