Q

QAtlas curated demonstration

Product vs Bell

Matching-looking branch populations do not by themselves establish entanglement; read the labelled metric and ribbons.

What this demonstration shows

A product state and a Bell state can both show two bright computational-basis branches. Their state structure differs, so the labelled coherence and subsystem metric matter more than a silhouette alone.

How to inspect it

Use the inspector and the disclosed first-qubit-versus-rest entropy. Branch appearance by itself cannot establish entanglement or physical equivalence.

Read the representation methodology

QAtlas laboratory / representation v1

Quantum State Sculptor

Methodology
A three-branched W-state quantum sculpture suspended over a dark measurement grid.
W state / reference view

One excitation is shared across three qubits. Branch size shows probability; the phase marks and ribbons make the representation’s relationships inspectable.

Read the visual language
computational-basis field · v1
Purity
1.000
Mixedness
0.000
Entropy q₀|rest
0.000 bits
Ribbons
1

Representation limitation. This sculpture is a deterministic explanatory encoding, not literal physical space. It is computational-basis dependent; visual similarity cannot establish state equivalence, entanglement, or operational fidelity.

OpenQASM 2.0 subset

Accepts qreg/creg, X/Y/Z/H/S/T/RX/RY/RZ/CNOT/CZ/SWAP, barriers, and terminal measurements only.

Timeline & measurement

Every gate produces an exact stored state. Discrete gates use a labelled visual transition; rotations can be interpreted as intermediate unitaries.

|0050.0%|0150.0%|100.0%|110.0%

Export & share

Exports are generated from this same deterministic geometry. GLB contains representation metadata and is not a 3D-print claim.