What is quantum computer?

A quantum computer is a computer that uses quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. A quantum computer operates on qubits, which are units of quantum information.

The basic principle behind quantum computing is that a quantum bit (qubit) can represent a zero and a one at the same time, and that quantum computers can exploit this fact to solve certain problems much faster than classical computers.

The field of quantum computing was born in the early 1980s, when physicist Richard Feynman proposed building a computer that could solve certain problems …