The speed of light varies in materials, impacting fiber optics, laser systems, and semiconductor lithography through complex electromagnetic interactions.

Computing is hitting a physical and economic wall just as generative artificial intelligence explodes in complexity and cost.

Physicists have finally watched positronium, a short‑lived atom made of an electron and its antimatter twin, behave like a rippling quantum wave instead of a tiny billiard ball. In a set of ...

Abstract: This article has proposed a new and efficient Global Navigation Satellite System (GNSS) anti-interference method using fractional Fourier transform (FrFT) and notch filtering. An effective ...

Abstract: We propose a three-dimensional image reconstruction acceleration algorithm based on parallel light white light interference system. We move the sample or mirror to be tested longitudinally ...