16-qubit IBM universal quantum computer can be fully entangled
Yuanhao Wang, Ying Li, Zhang-qi Yin, Bei Zeng · npj Quantum Information · 2018
Abstract Entanglement is an important evidence that a quantum device can potentially solve problems intractable for classical computers. In this paper, we prepare connected graph states involving 8 to 16 qubits onibmqx5, a 16-qubit superconducting quantum processor accessible via IBM cloud, using low-depth circuits. We demonstrate that the prepared state is fully entangled, i.e., the state is inseparable with respect to any fixed partition.