01Foundations
Quantum superposition
Rotate one qubit into a coherent state with amplitudes for two outcomes.
Open experiment→Quantum experiment library
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Each lab explores one quantum idea with a visual model, one main control, and results you can compare.
New here? Begin with 01 and follow the numbers—or choose the idea that interests you most.
View learning path15 experiments
02Foundations
Quantum bit flip
Use the Pauli-X gate as the quantum version of NOT.
Open experiment→03Foundations
Measurement and sampling
Turn state probabilities into single outcomes and repeated frequencies.
Open experiment→04Foundations
Phase and interference
Make an invisible phase difference visible through interference.
Open experiment→05Foundations
Measurement bases
Measure the same |+⟩ state in the Z or X basis and compare the outcomes.
Open experiment→06Foundations
Gate order matters
Apply H and Z in opposite orders and reveal the difference in the X basis.
Open experiment→07Entanglement
CNOT: from product state to Bell pair
Let CNOT turn a superposed control and a |0⟩ target into a correlated two-qubit state.
Open experiment→08Entanglement
Bell-state entanglement
Link two qubits so same-basis measurements agree while each qubit remains locally random.
Open experiment→09Entanglement
GHZ three-qubit entanglement
Create one correlation shared coherently by three qubits.
Open experiment→10Communication
Quantum teleportation
Transfer an unknown quantum state using entanglement and two classical bits.
Open experiment→11Error correction
Three-qubit bit-flip code
Protect one logical qubit by spreading it across three physical qubits.
Open experiment→12Communication
BB84 quantum key distribution
Detect intercept-resend eavesdropping because measuring in an unknown basis creates errors.
Open experiment→13Algorithms
Deutsch–Jozsa algorithm
With the promise that a function is constant or balanced, decide which using one quantum query.
Open experiment→14Algorithms
Grover search
Amplify one marked answer—and see why the number of iterations matters.
Open experiment→15Algorithms
Quantum Fourier transform
Turn an eight-point phase ramp into visible frequency bins.
Open experiment→