<a href="https://en.wikipedia.org/wiki/Quantum_circuit" class="extiw" title="w:Quantum circuit">Quantum circuit</a> diagram constructing a <a href="https://en.wikipedia.org/wiki/Controlled_NOT_gate" class="extiw" title="w:Controlled NOT gate">controlled NOT (CNOT)</a> <a href="https://en.wikipedia.org/wiki/Quantum_gate" class="extiw" title="w:Quantum gate">gate</a> from Sqrt(SWAP) gates and single-qubit operations.
<a href="//commons.wikimedia.org/wiki/User:Geek3" title="User:Geek3">Geek3</a>
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<span class="int-own-work" lang="en">Own work</span>