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Quantum Nanowires Slash Electrical Noise, Opening New Path for Ultralow-Noise Electronics Flicker Noise Explained at the Smallest Scales That familiar low-frequency fuzz that disrupts mobile phone calls stems from the way electrons move and interact within materials at the smallest scales. Known as electronic flicker noise , it typically arises when the flow of electrons is interrupted by various scattering processes inside conductive metals. The same type of noise undermines the sensitivity of advanced sensors and poses a significant challenge for quantum computers — machines expected to deliver unbreakable cybersecurity, perform vast calculations and simulate nature in unprecedented ways. UCLA Study Reveals a Quieter Quantum Transport Regime Now, a far quieter and more promising future may be emerging. In a study led by UCLA , researchers have demonstrated prototype devices that, beyond a certain voltage, conduct electricity with less noise than is seen in ordinary electron flow . T...

Physicists Discover 'Impossible' Topological State in Quantum Material TU Wien Findings Challenge Long-Standing views of Particle-Based Physics Scientists at TU Wien have uncovered an unexpected state in a quantum material — one that was long thought to be impossible — prompting calls for a broader definition of topological states . The breakthrough has been reported in Nature Physics . Latest quantum physics and materials science news Why Classical Particle Theory Still Shapes Modern Physics Although quantum theory tells us that particles behave like waves, making their exact position uncertain, physicists often rely on classical intuition . In many cases, it remains remarkably effective to picture particles as tiny objects moving through space at a defined speed. This classical picture underpins how researchers describe electrical current in metals , where electrons are imagined to race through the material, accelerating or bending under the influence of electromagnetic ...

Physicists Discover Dual Superconducting States in Kagome Lattice Material CsV₃Sb₅ Introduction to Superconductivity and Its Mystery Superconductivity, characterized by the complete absence of electrical resistance at extremely low temperatures, is a quantum phenomenon of great interest. While the phenomenon is traditionally associated with the formation of Cooper pairs — electron pairs bound together — the precise factors that lead to superconductivity in quantum materials remain elusive. Study on Kagome Lattice Superconductor  CsV₃Sb₅ Researchers from Princeton University, the National High Magnetic Field Laboratory, Beijing Institute to Technology, and the University of Zurich recently undertook a study to explore the superconductivity of  CsV₃Sb₅ a material with a Kagome lattice, which consists of atoms arranged in a hexagonal configuration resembling the traditional Kagome basket pattern. The study, published in Nature Physics , establishes the presence of two supercondu...

Physicists Achieve Stable Superconductivity at Ambient Pressure Breakthrough in Ambient-Pressure Superconductivity Researchers at the University of Houston's Texas Center for Superconductivity have reached another groundbreaking milestone in their pursuit of ambient-pressure high-temperature superconductivity, advancing the quest for superconductors that function in real-world conditions and paving the way for next-generation energy-efficient technologies. Investigating Superconductivity in Bi₀.₅Sb₁.₅Te₃  (BST) Research by Liangzi Deng and Paul Ching-Wu Chu Professors Liangzi Deng and Paul Ching-Chu of the UH Department of Physics investigated the induction of superconductivity in  Bi₀.₅Sb₁.₅Te₃ (BST) under pressure while preserving its chemical and structural properties, as detailed in their study, "Creation, stabilization, and investigation at ambient pressure of pressure-induced superconductivity in  Bi₀.₅Sb₁.₅Te₃" published in the Proceeding of the National Aca...

First Measurement of Quantum Geometry Marks a New Era in Quantum Physics Introduction to Quantum Geometry in Solids For the first time, MIT physicists and collaborators have directly measured the quantum-level geometry of electrons in solids. While the energies and velocities of electrons in crystalline materials are well-studied, their quantum geometry has  previously been accessible only through theoretical inferences or remained unobservable. O pening New Avenues in Quantum Physics Riccardo Comin, MIT's Class of 1947 Career Develo pment Associate Professor of Physics and lead researcher, describes the study,  published in the November 25 issue of Nature Physics , as o pening "new avenues for understanding and mani pulating the quantum  pro perties of materials." A New Framework for Quantum Research "We've effectively created a framework for accessing entirely new information that was  previously unattainable," says Comin, who is also affiliated with MIT...

Physicists Observe Directional Mass-Only Particle for the First Time Introduction to the Discovery of Semi-Dirac Fermions Researchers have successfully identified, for the first time, a semi-Dirac Fermion-a quasiparticle characterized by being massless in one direction and  possessing mass in the other. Though hy pothesized 16 years ago, it was only recently observed within a ZrSiS semi-metal crystal. This breakthrough holds  promise for transformative a p plications in technologies such as sensors and batteries. Researchers from Penn State and Columbia University recently unveiled their findings in Physical Review X . The Surprise Discovery and Its Significance Unantici pated Findings "This discovery came as a com plete sur prise," said Yinming Shao, assistant  professor of  physics at Penn State and the study's lead author. "Our initial research was not focused on semi-Dirac ferminos, but unex pected signatures in the data led us to realize we had made the first o...