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Science News for March 9, 2025


Zuchongzhi-3: A 105-qubit superconducting quantum processor with 10¹⁵ times speedup in circuit sampling

The USTC team developed a 105-qubit superconducting quantum processor that achieves a coherence time of 72 μs and outperforms the world's most powerful supercomputer by 15 orders of magnitude. This milestone marks a significant upgrade from its predecessor, Zuchongzhi-2, and demonstrates a record speedup in circuit sampling.

SourceUniversity of Science and Technology of China·JournalPhysical Review Letters·DateMar 9, 2025

USTC develops compact device for super-resolution imaging beyond the diffraction limit

Researchers from USTC unveil planar optical device that enhances dark-field microscopy capabilities, achieving super-resolution imaging. The compact device uses a scattering layer and metallic film to generate dark-field speckle patterns, enabling high-contrast imaging with improved spatial resolution.

SourceUniversity of Science and Technology of China·JournalProceedings of the National Academy of Sciences·DateMar 9, 2025

HKU study shows bad sleep harms old-age memory by disrupting the brain’s ‘waste removal system’

A recent study published in Molecular Psychiatry suggests that poor sleep quality among older adults disrupts the brain's glymphatic system, leading to memory decline. The research team found that deactivation of the restorative glymphatic system negatively impacts normal brain function and cognitive health.

SourceThe University of Hong Kong·JournalMolecular Psychiatry·TypeExperimental study·DateMar 9, 2025