Greenberger–Horne–Zeilinger state (source code)

= Greenberger–Horne–Zeilinger state
{c}
{wiki}

= GHZ state
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{synonym}

The three-qubit GHZ state is
$$
|\operatorname{GHZ}\rangle
=\frac{|000\rangle+|111\rangle}{\sqrt2}.
$$