Quantum Computers

Bloch sphere is a representation of a qubit

The Bloch sphere is a representation of a qubit, the fundamental building block of quantum computers.

What are Quantum Computers?

A quantum computer is a computer that makes direct use of distinctively quantum mechanical phenomena to perform operations on data.

In a classical (or conventional) computer, the amount of data is measured by bits; in a quantum computer, the data is measured by qubits.

Source: Wikipedia

The basic principle of quantum computation is that the quantum properties of particles can be used to represent and structure data, and that quantum mechanisms can be devised and built to perform operations with these data.

Microsoft video Quantum Computing 101 (July 2014)



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