Quantum Circuit Playground

Experiment with real quantum circuits using the Quirk simulator. Drag gates onto qubits, see probability distributions, and observe quantum phenomena in real-time!

💡 Quick Start Guide

  • Drag gates from the toolbox onto the circuit
  • Hadamard (H) creates superposition
  • X gate flips |0⟩ ↔ |1⟩ (quantum NOT)
  • CNOT creates entanglement between qubits
  • Watch the right panel to see probabilities change in real-time

Try These Experiments

🎲 Superposition

Apply a Hadamard (H) gate to a qubit starting in |0⟩. You'll see it enters a 50/50 superposition!

🔗 Entanglement

Create a Bell state: Apply H to the first qubit, then a CNOT from qubit 1 to qubit 2. The qubits are now entangled!

🔄 Quantum Interference

Apply H, then X, then H again to a qubit. The result is always |1⟩ — quantum interference at work!

📊 Measurement

Add a measurement gate to collapse superposition. Run the circuit multiple times to see probabilistic outcomes.

Want to Learn More?

Head back to our lessons to understand the theory behind these quantum gates and how to build powerful quantum algorithms.

Explore Lessons