Pan Jianwei, a leading Chinese quantum scientist, worked with his colleagues to create a 18-qubit Greenberger-Horne-Zeilinger entangled state, setting a new record in the physical world.
The achievement was published as editors’ suggestion in Physical Review Letters (PRL) on June 28, 2018.
Pan and his workmates from the University of Science and Technology of China (USTC) in East China's Anhui province, including Lu Chaoyang, Liu Naile and Wang Xilin, demonstrated the 18-qubit entangled state by using three degrees of freedom - path, polarization and orbital angular momentum- of six photons.
Quantum entanglement is a phenomenon in which two or more entangled subatomic particles, or qubits, can theoretically affect each other regardless of distance.
Pan’s team also set a record in 2016 by achieving a stable 10-qubit entangle state.