Xu-Jie Wang

TL;DR: In this paper, an efficient light-matter interface for quantum repeaters was developed by placing Rb atoms optically confined in a 3D lattice in a ring cavity, achieving an initial retrieval efficiency of 76% together with a 1/e lifetime of 0.22 s.

TL;DR: In this article, the entanglement of three remote quantum memories via three-photon interference was achieved by employing laser-cooled atomic ensembles and making use of a ring cavity to enhance the overall efficiency of the memory.

TL;DR: The Hong-Ou-Mandel interference witnesses an entangled NOON state of the collective atomic excitations, and it is demonstrated its two times enhanced sensitivity to a magnetic field compared with a single excitation.

TL;DR: A source of highly retrievablespin-wave-photon entanglement created through interaction of a single photon with an ensemble of atoms inside a low-finesse ring cavity that enables efficient retrieval of the spin-wave qubit is reported.

TL;DR: Time-resolved measurement enables us to observe nonclassical multiphoton correlation landscapes, which agree well with theoretical calculations and can be further extended to realize boson sampling with many photons and plenty of modes, which thus may provide a route towards quantum supremacy with nonidentical photons.