RE: What is a Quantum Computer in Layman Terms.

grondak — Fri, 24 Jan 2020 00:58:15 GMT

I watched this video and then ran the tutorials on the IBM quantum computers. That was a lot of fun. I learned enough to make a "superdense information transfer" example work (this is outside the tutorial).

See: https://en.wikipedia.org/wiki/Superdense_coding

RE: What is a Quantum Computer in Layman Terms.

clem57 — Mon, 28 Oct 2019 19:50:20 GMT

An example:

below is an example of a quantum circuit that makes a three-qubit GHZ state

| ⟩=(|000⟩+|111⟩)/2⎯⎯√.

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A Hadamard gate on qubit 0, which puts it into the

superposition state (|0⟩+|1⟩)/2⎯⎯√(|0⟩+|1⟩)/2.

A controlled-Not operation ( CX) between qubit 0 and qubit .
A controlled-Not operation between qubit 0 and qubit 2.

On an ideal quantum computer, the state produced by running

this circuit would be the GHZ state above.