2018/01/31 by Yuanhao Wang, Ying Li, Zhang-qi Yin +1 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1038/s41534-018-0095-x
published as npj Quantum Information 4, 46 (2018) · 23 pages, 9 figures, 2 tables; The full entanglement is clarified; a new section is added on the localized entanglement with distance 3 and 4, accepted version
arxiv created 2018/09/28 · arxiv updated 2018/10/01
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 on ibmqx5, 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.