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QUBITS - SUPERPOSITION - ENTANGLEMENT - CORRELATION - COHERENCE
QUANTUM COMPUTING works with subatomic particles called QUBITS (quantum bits)
Qubits can represent 0 or 1 or both simultaneously – in a state called SUPERPOSITION
|0> or |1> or SUPERPOSITION
Qubits in superposition can become ENTANGLED. Entanglement is an extremely strong CORRELATION that exists between quantum particles. As the number of entangled qubits increases the number of correlations grows exponentially. Entanglement and correlation allow multiple states to be acted on simultaneously
For n qubits there are 2n correlations
This is what gives quantum computing its unprecedented speed, capacity and world changing computing potential.
COHERENCE is the force that allows quantum particles to perform together. Factors in the environment like heat and even observation can cause quantum computers to loose stability over time. Existing quantum computers use cold and carefully controlled environments to prevent DECOHERENCE.
Quantum Computing explained in 10 minutes
Shohini Ghose, TED Fellow
A Beginner’s Guide to Quantum Computing
Talia Gershon, IBM Research
Quantum computing explained with a deck of cards
Dario Gil, IBM Research