Entanglement map · Established

Three qubits can be entangled in two inequivalent ways

Proved, with a source.

Under stochastic LOCC, fully entangled three-qubit pure states fall into two classes that cannot be converted into one another, represented by the GHZ and W states.

Connections

• Part of: Multipartite entanglement
• See also: Four qubits fall into nine families
• See also: No single maximally entangled multipartite state exists
• See also: When can many copies of one tensor produce another?

Sources

• Three qubits can be entangled in two inequivalent ways. W. Dür, G. Vidal, J. I. Cirac, 2000.

Checked 2026-10-30.