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Breakthrough may clear major hurdle for quantum computers

Researchers at Chalmers University of Technology have created a unique system that combats the trade-off problem between operation complexity and fault tolerance. The system uses harmonic oscillators to encode information linearly, offering a seamless gradient of colors and providing far richer possibilities than traditional qubits.

SourceChalmers University of Technology·JournalNature Communications·TypeExperimental study·DateJun 18, 2024

Exploiting nonlinear scattering medium for optical encryption, computation, and machine learning

Researchers have discovered a way to utilize nonlinear scattering media for optical computing and machine learning. They created a novel theoretical framework involving third-order tensors, which can represent the complex relationships between input and output signals. This breakthrough has potential applications in real-world settings...

SourceInstitute for Basic Science·JournalNature Physics·TypeExperimental study·DateAug 1, 2023

Light can compute any desired linear transform without a digital processor

Researchers have developed an all-optical processor that uses spatially-engineered diffractive surfaces to compute arbitrary linear transforms, eliminating the need for digital processors. The processing speed is comparable to light propagation, and the system consumes no power except for illumination.