Topological phases are robust against weak perturbations, but break down when disorder becomes suffi

Flying qubit is one type of the basic elements for transmitting quantum information in quantum netwo

Recently, Kai Chang’s group, in collaboration with Kian Ping Loh’s group from National University of Singapore and Dr. Heng Gao’s group from Shanghai University, has achieved the synergistic control of second-harmonic circular dichroism through electric and optical fields. This work, entitled “Dion–Jacobson Perovskites with a Ferroelectrically Switchable Chiral Nonlinear Optical Response”, was published in Journal of the American Chemical Society on December 19, 2024.

Recently, Professor Gui-Lu Long and Associate Researcher Min Wang from the Quantum Secure Direct Communication (QSDC) group at the Beijing Academy of Quantum Information Sciences (BAQIS) made progress in access authentication for quantum communication networks.