Hefei University

Gate-imprinted memory and light-induced erasure of superconductivity at KTaO3-based interfaces

Realizing non-volatile control of superconductivity is a key step toward integrating memory and quantum functionality in future information technologies. KTaO₃-based heterostructures uniquely host interfacial two-dimensional superconductivity and quantum paraelectric lattice back...

High-gain packaged Ytterbium-doped thin-film lithium niobate large-mode-area waveguide amplifier

We report a high-gain packaged Ytterbium-doped large-mode-area waveguide amplifier based on the thin-film lithium niobate platform. Under bi-directional 976 nm pumping, the amplifier delivers a robust fiber-to-fiber net gain of 13.5 dB at 1060 nm and 6.0 dB at 1030 nm for a −10 d...

Prevalence and network analysis of depressive, anxiety and cognitive symptoms among oldest-old population in China

The oldest-old people are prone to such psychological and mental risks as depression, anxiety, and cognitive dysfunction. Yet which specific symptom poses the biggest threat remains elusive, especially when the characteristics of a certain sample are considered. Using network ana...

Unified framework for efficiently computable quantum circuits

Quantum circuits consisting of Clifford and matchgates are two classes of circuits that are known to be efficiently simulatable on a classical computer. We introduce a unified framework that shows in a transparent way the special structure that allows these circuits to be efficie...

Orientation-tunable correlated Chern insulating states in chiral twisted double bilayer graphene proximitized by WSe2

Moiré flat bands in graphene systems proximitized by transition-metal dichalcogenides (TMDCs) provide a setting where spin-orbit coupling (SOC) can reshape band topology. The crystallographic alignment angle Φ between TMDC and graphene layers is predicted to tune the balance of I...