Quantum computing – UPSC

Quantum computer is computer design which uses principles of quantum physics to increase computational power beyond attainable limits of traditional computer.

It employs complex principles of quantum mechanics to store information in ‘qubits’ (quantum bit) instead of the typical binary ‘bits’ of 1 and 0.

Qubit is two-state quantum-mechanical system, such as the polarization of a single photon (either vertical polarization or horizontal polarization).

Qubit allows for far greater flexibility than the binary system.

It works faster because of way such circuits are designed and can do intensive number-crunching tasks much more efficiently than the fastest comparable computers.

For instance, quantum computer require 3.5 million fewer steps to sort billion numbers compared to traditional machine and it can find the solution in only 31,623 steps.

Quantum Computing help in solving complex computing physics problems, which were earlier not possible on traditional computers.