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Flexible metafiber device can generate optical skyrmions with designer topological textures and subwavelength features

9 décembre

Skyrmions, recognized for their intricate spin configurations, have captivated researchers as topological quasiparticles with vast potential in data storage and information technology. Recently, optical skyrmions—light-based counterparts of these quasiparticles—have emerged as a promising avenue (…)

Theory-based approach gives access to quarks’ tiny transverse motion within protons

9 décembre

Nuclear theorists at Brookhaven National Laboratory and Argonne National Laboratory have successfully employed a new theoretical approach to calculate the Collins-Soper kernel, a quantity that describes how the distribution of quarks’ transverse momentum inside a proton changes with the (…)

Time-symmetry concept boosts accuracy of radar and LiDAR systems

9 décembre

An international research team has developed a new technology that helps to improve the accuracy of radar applications and LiDAR systems. Among its possible uses, it could contribute to implementing autonomous cars and optimize environmental monitoring.

First electrically pumped, continuous-wave semiconductor laser advances silicon photonics integration

9 décembre

Scientists have developed the first electrically pumped continuous-wave semiconductor laser composed exclusively of elements from the fourth group of the periodic table—the "silicon group."

Exploiting optical materials to capture hidden data through new imaging approach

9 décembre

In an era where autonomous navigation, medical diagnostics and remote sensing are rapidly evolving, traditional cameras—limited to capturing only the red, green, and blue (RGB) light intensities—are falling short of data demands. These cameras often miss essential spectral and polarization (…)

Team seeks to set new standards in high-resolution microscopy using a quantum optics trick

9 décembre

About 100 years ago, humanity learned to see with the help of electrons. In 1924, Louis de Broglie posited that—like light particles—electrons have wave properties. In 1927, the U.S. physicists Davisson and Germer provided experimental proof of this.

New study reveals quasiparticle loss in extreme quantum materials

9 décembre

A new study by Rice University physicist Qimiao Si unravels the enigmatic behaviors of quantum critical metals—materials that defy conventional physics at low temperatures. Published in Nature Physics Dec. 9, the research examines quantum critical points (QCPs), where materials teeter on the (…)

Google’s new quantum chip hits error correction target

9 décembre

Quantum error correction that suppresses errors below a critical threshold needed for achieving future practical quantum computing applications is demonstrated on the newest generation quantum chips from Google Quantum AI, reports a paper in Nature this week. The device performance, if scaled, (…)

Modulation of heat flow by means of electric fields enables the creation of thermal circuits

9 décembre

Overheating in electronic devices affects how it works and how long it lasts. One of the major challenges is efficiently managing the heat generated by these systems during operation, which involves controlling the thermal conductivity of the materials they comprise. While electric current can (…)

Judging knot strength throws people for a loop : Experiment reveals new blind spot in our physical reasoning

9 décembre

We tie our shoes, we put on neckties, we wrestle with power cords. Yet despite deep familiarity with knots, most people cannot tell a weak knot from a strong one by looking at them, new Johns Hopkins University research finds.