circuits / bell-state

Bell State

✓FEATURED

Creates a maximally entangled Bell state |Φ+⟩ = (|00⟩ + |11⟩)/√2 using a Hadamard gate followed by a CNOT.

quantumcomputer.dev
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1OPENQASM 2.0;
2include "qelib1.inc";
3qreg q[2];
4creg c[2];
5h q[0];
6cx q[0],q[1];
7measure q -> c;

Cite this circuit

MIT
quantumcomputer.dev. "Bell State". quantumcomputer.dev/circuits/bell-state. 2026.