Evidence of the entanglement constraint on wave-particle duality using
  the IBM Q quantum computer
We experimentally verify the link existing between entanglement and the
amount of wave-particle duality in a bipartite quantum system, with
superconducting qubits in the IBM Q quantum computer. We consider both pure and
mixed states, and study the influence of state purity on the observation of the
complementarity "triality" relation of Jakob and Bergou. This work confirms the
quantitative completion of local Bohr's complementarity principle by the
nonlocal quantum entanglement typical of a truly bipartite quantum system.
Nicolas Schwaller Marc-André Dupertuis Clément Javerzac-Galy