Physics
press releases.

Physics9 Jul 2025

Mount Sinai’s Andy Jagoda, MD, receives top honor from New York chapter of the American College of Emergency Physicians

Andy Jagoda, MD, Professor of Emergency Medicine at the Icahn School of Medicine of Mount Sinai, has received the prestigious Edward W. Gilmore Lifetime Achievement Award from the New York Chapter of the American College of Emergency Physicians (ACEP). He was presented with this honor Wednesday, July 9, at the New York ACEP Scientific Assembly in Bolton Landing, New York. This award honors Dr. Jagoda for his significant contributions to the field through education, leadership, mentoring, and advancing the quality of emergency care. It recognizes Dr. Jagoda’s lifelong commitment to, and lasting impact on, the specialty of emergency medicine ...

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Physics9 Jul 2025

Teaching lasers to self-correct in high-precision patterned laser micro-grooving

In International Journal of Extreme Manufacturing, a new laser machining method that dynamically adapts its beam shape is proposed to fabricate microgrooves with complex, highly precise cross-sections—some with a root mean square error decreased to less than 0.5 μm when processing microgrooves with a width of 10 μm. The technique, developed by researchers at the Southern University of Science and Technology (SUSTech) in Shenzhen, China, could advance the production of microfluidic devices, sensors, and heat dissipation systems by allowing for rapid and scalable manufacturing of custom microstructures. Laser micromachining has long been constrained by the fundamental ...

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Physics7 Jul 2025

Advancements in vortex particle method enable stable simulation of high Reynolds number flows and shear turbulence

The Vortex Particle Method (VPM), a meshless vortex flow simulation approach, is gaining traction for its efficient simulation of unsteady vortex wakes evolution that is shed by aircrafts, rotors and wind turbines. It outperforms traditional grid-based CFD methods with faster computation, lower dissipation, and easier satisfaction of the CFL stability condition. However, traditional VPM has huge challenge on accurately simulating these complex flows, due to its poor numerical stability, which is compromised by factors such ...

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Physics3 Jul 2025

Can the Large Hadron Collider snap string theory?

Key takeaways Researchers from Penn and Arizona State University pinpoint a lone five-particle package (a 5-plet) that could upend string theory by detecting it at the Large Hadron Collider. “Ghost” tracks that vanish mid-flight may be the smoking gun physicists are chasing. Early data squeeze the search window, but the next collider runs could make—or break—the case. In physics, there are two great pillars of thought that don’t quite fit together. The Standard Model of particle physics describes all known fundamental particles and three forces: electromagnetism, ...

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Physics2 Jul 2025

A map for single-atom catalysts

Catalysis – the acceleration of a chemical reaction by adding a particular substance – is extremely important in industry as well as in everyday life. Around 80 % of all chemical products are produced with the help of catalysis, and technologies like exhaust catalysts or fuel cells are also based on this principle. One particularly effective and versatile catalyst is platinum. However, because platinum is a very rare and expensive precious metal whose production causes a lot of CO2 emissions, it is important to use as little of it as possible while maximizing its efficiency. Catalysts with single ...

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Physics30 Jun 2025

Early birds get the burn: Monash study finds early bedtimes associated with more physical activity

Going to bed earlier than usual may help to optimise physical activity the following day, Monash University-led research has found. Published in Proceedings of the National Academy of Sciences (PNAS), the study examined whether sleep duration and sleep timing were associated with the duration of moderate-to-vigorous and overall physical activity the following day. In the primary study, almost 20,000 participants wore a validated biometric device (WHOOP) for one year, resulting in almost six million nights of data. Objective sleep and physical activity metrics were derived from the wrist-worn device. The study examined how both typical ...

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Physics26 Jun 2025

Oxford scientists develop new technique for capturing ultra-intense laser pulses in a single shot

Scientists at the University of Oxford have unveiled a pioneering method for capturing the full structure of ultra-intense laser pulses in a single measurement. The breakthrough, published in close collaboration with Ludwig-Maximilian University of Munich and the Max Planck Institute for Quantum Optics, could revolutionise our ability to control light-matter interactions. This would have transformative applications in many areas, including research into new forms of physics and realising the extreme ...

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Physics23 Jun 2025

A unified approach to first principles calculations of Parton physics in hadrons

Understanding the structure of hadrons, such as protons and neutrons, is currently one of the most important goals for researchers studying nuclear and particle physics. Hadrons consist of quarks and gluons, together called partons. The behavior of partons inside hadrons is described by mathematical tools called parton distribution functions (PDFs), which tell us the probability of finding partons carrying a fraction x of the hadron's total momentum. Until recently, PDFs were mainly determined by fitting data obtained from decades of high-energy experiments, a process known as phenomenological modeling. Recently, the interest in calculating PDFs from ...

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Physics19 Jun 2025

Researchers demonstrate precise optical clock signal transmission via multicore fiber

WASHINGTON — Researchers have shown, for the first time, that transmission of ultrastable optical signals from optical clocks across tens of kilometers of deployed multicore fiber is compatible with simultaneous transmission of telecommunications data. The achievement demonstrates that these emerging high-capacity fiber optic networks could be used to connect optical clocks at various locations, enabling new scientific applications. As global data demands continue to surge, multicore fiber is being installed to help overcome the limits of existing networks. These fibers pack multiple light-guiding cores ...

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Physics18 Jun 2025

Message in a bubble: using physics to encode messages in ice

Inspired by naturally occurring air bubbles in glaciers, researchers have developed a method to encode messages in ice. Publishing June 18 in the Cell Press journal Cell Reports Physical Science, the paper explains how the team encoded frozen messages in binary and Morse code by manipulating the size and distribution of bubbles in ice. The method could be used to store short messages in very cold regions such as Antarctica and the Arctic, where conventional information storage is difficult or prohibitively expensive. “In naturally cold regions, the use of trapped air bubbles as a means of message delivery and storage uses less energy than ...

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Physics17 Jun 2025

Easily attach nanoparticles like toy blocks for industrial use!

Dr. Seunggun Yu and his team at KERI's Insulation Materials Research Center have developed a groundbreaking ‘Hybrid Supraparticle Synthesis Technology’ that can attach inorganic nanoparticles to the surface of polymer microparticles through simple mechanical collisions. The ‘Hybrid Supraparticle Synthesis Technology’ that combines functional inorganic nanoparticles with polymer microparticles is being widely applied across various industries, including battery electrode materials, catalyst systems, pharmaceuticals and biotechnology, semiconductor packaging, and insulating ...

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Physics13 Jun 2025

The value of physical activity for people with RMD

Several sessions at the 2025 annual congress of EULAR, which took place in Barcelona, focused on the value of physical activity for people with a variety of RMD – as well as the potential barriers to implementing these programs in the real world. Previous trials have demonstrated that long-standing, personalised supervised exercise therapy is more effective than usual care after 1 year in people with severe functional limitations due to rheumatoid arthritis (RA) or axial spondyloarthritis (axSpA).3,4 David Ueckert and colleagues set out to evaluate ...

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Physics12 Jun 2025

Unprecedented optical clock network lays groundwork for redefining the second

WASHINGTON — In a new study, researchers carried out the most extensive coordinated comparison of optical clocks to date by operating clocks and the links connecting them simultaneously across six countries. Spanning thousands of kilometers, the experiment represents a significant step toward redefining the second and ultimately establishing a global optical time scale. “The accurate time and frequency signals provided by atomic clocks are essential for many everyday technologies — like GPS, managing power grids and keeping financial transactions in sync,” said Helen Margolis, head of time and frequency ...

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Physics11 Jun 2025

Ladybirds' complex colors may result from a combination of pigments and physical properties of their wingcase

Ladybirds' complex colors may result from a combination of pigments and physical properties of their wingcase Article URL: https://plos.io/4jnQti0 Article title: Decoding ladybird’s colours: Structural mechanisms of colour production and pigment modulation Author countries: France Funding: This study has been supported through the EUR grant NanoX n° ANR-17-EURE-0009 in the framework of the “Programme des Investissements d’Avenir.” Part of this research has also been supported by the University ...

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Physics6 Jun 2025

IEEE study describes polymer waveguides for reliable, high-capacity optical communication

Co-packaged optics (CPO) technology can integrate photonic integrated circuits (PICs) with electronic integrated circuits (EICs) like CPUs and GPUs on a single platform. This advanced technology has immense potential to improve data transmission efficiency within data centers and high-performance computing environments. CPO systems require a laser source for operation, which can be either integrated directly into the silicon photonic chips (integrated laser sources) or provided externally. While integrated laser sources allow for dense CPO integration, ensuring ...

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Physics5 Jun 2025

China successfully develops its first double-spoke superconducting cavity cryomodule

Designed a high-performance double-spoke superconducting cavity. The research team implemented comprehensive electromagnetic and mechanical optimizations on the double-spoke superconducting cavity, achieving three key improvements: reduction of peak electric field during normal operation, suppression of multipacting effects, and enhanced manufacturability. A dedicated Buffered Chemical Polishing tooling system was developed for double-spoke superconducting cavities with complex structures, ensuring uniform acid etching and achieving high Q-values (Q > 3.4×10¹⁰ @ Eₐcc = 9 MV/m). Developed a high-performance cryomodule The ...

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Physics4 Jun 2025

INRS and ELI deepen strategic partnership to train the next generation in laser science

On May 26, the Institut national de la recherche scientifique (INRS) welcomed a European delegation from the Extreme Light Infrastructure (ELI), marking a significant milestone in strengthening scientific ties between Canada and Europe in the field of high-intensity laser science. The visit was part of a cross-Canada tour organized in partnership with the Hungarian and Czech Embassies, host countries of the ELI facilities. At the heart of this meeting was a shared commitment to advancing ultrafast laser science and training the next generation of highly skilled researchers. INRS, internationally recognized for its work ...

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Physics2 Jun 2025

Information entropy untangles vortices and flows in turbulent plasmas

Research Background: Turbulence in nature refers to the complex, time-dependent, and spatially varying fluctuations that develop in fluids such as water, air, and plasma. It is a universal phenomenon that appears across a vast range of scales and systems—from atmospheric and oceanic currents on Earth, to interstellar gas in stars and galaxies, and even within jet engines and blood flow in human arteries. Turbulence is not merely chaotic; rather, it consists of an evolving hierarchy of interacting vortices, which may organize into ...

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Physics30 May 2025

Single-atom catalysts change spin state when boosted by a magnetic field

The job of a catalyst is to ultimately speed up reactions, which could reduce an hour-long process into several minutes. It has recently been shown that using external magnetic fields to modulate spin states of single-atom catalysts (SACs) is highly effective - enhancing oxygen evolution reaction magnetocurrent by a staggering 2,880%. With this in mind, researchers at Tohoku University proposed a completely novel strategy to apply an external magnetic field to modulate spin states, and thereby improve electrocatalytic performance. This study provides valuable insights regarding the development of efficient and sustainable electrochemical technologies ...

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Physics30 May 2025

Exploiting the full potential of multiferroic materials for magnetic memory devices

As the digital world demands greater data storage and faster access times, magnetic memory technologies have emerged as a promising frontier. However, conventional magnetic memory devices have an inherent limitation: They use electric currents to generate the magnetic fields necessary to reverse their stored magnetization, leading to energy losses in the form of heat. This inefficiency has pushed researchers to explore approaches that could further reduce power consumption in magnetic memories while maintaining or even enhancing their performance. Multiferroic materials, ...

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Physics29 May 2025

Listening to electrons talk

Quantum electrodynamics – a competition area for precision Quantum electrodynamics (QED) is the fundamental theory describing all electromagnetic phenomena including light (photons). At the same time, it is the most precisely tested theory in physics at all. It has been stringently tested in various ways up to 0.1 parts per billion. But it is just the very strength of this theory that drives physicists to test it even more rigorously and to explore its possible limits. Any significant deviation would be a hint for new physics. QED understands the electromagnetic interaction among charged particles as the exchange of “virtual” photons – ...

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Physics29 May 2025

World record achieved in transmission capacity and distance: With 19-core optical fiber with standard cladding diameter 1,808 km transmission of 1.02 petabits per second

Highlights - The world's first successful petabit-class transmission over more than 1,000 km using standard 19-core optical fiber, achieving a transmission rate of 1.02 petabits per second over a distance of 1,808 km. - Achieved using a newly developed standard 19-core optical fiber, equivalent to 19 standard fibers, low loss across multiple wavelength bands, and the development of an optical amplification relay function compatible with this fiber. - This is a major step to realize future long-distance, large-capacity optical communication systems. Abstract An international research team led by the Photonic Network Laboratory at the National Institute of Information and ...

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Physics28 May 2025

New chiral photonic device combines light manipulation with memory

As fast as modern electronics have become, they could be much faster if their operations were based on light, rather than electricity. Fiber optic cables already transport information at the speed of light; to do computations on that information without translating it back to electric signals will require a host of new optical components. Engineering researchers at the University of Utah have now developed such a device—one that can be adjusted on the fly to give light different degrees of circular polarization. Because information can be stored in a property of light known as chirality, the researchers’ device could serve as a multifunctional, ...

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Physics27 May 2025

Fewer Ontario family physicians provide comprehensive care

Background and Goal: This study examined long‑term shifts toward focused practice among family physicians in Ontario, Canada, as well as changes in the number of comprehensive family physicians relative to population growth. Study Approach: Researchers linked multiple Ontario health‑administrative data sets to track practice patterns for every general practitioner or family physician from fiscal years 1993/94 through 2021/22. Analyses were stratified by physician sex and years in practice. Main Results: The proportion of family physicians working in focused roles rose to 19.2% ...

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Physics27 May 2025

Few diffusers and many bottlenecks: the French labor market according to statistical physics

How long have you been doing your current job? Have you ever thought about trying a new profession? How difficult does change seem to you? The current rapid transformation of the labor market is putting many workers to the test: they struggle to keep up and move into new roles, while at the same time companies are having difficulty finding qualified personnel. A new study has analyzed the French labor market using methods from statistical physics, and found that over 90% of jobs today function as bottlenecks: they are easily accessible, but once entered, they become traps from which ...

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