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Jul 26, 2024

Optimization algorithm successfully computes the ground state of interacting quantum matter

Posted by in categories: information science, quantum physics, robotics/AI

Over the past decades, computer scientists have developed various computing tools that could help to solve challenges in quantum physics. These include large-scale deep neural networks that can be trained to predict the ground states of quantum systems. This method is now referred to as neural quantum states (NQSs).

Jul 26, 2024

A swinging showerhead leads to discovery of a new mode of vibration in nature

Posted by in categories: biotech/medical, habitats

During the hot summer of 2020, confined to his Pasadena home during the COVID-19 pandemic, National Medal of Science-winning applied physicist Amnon Yariv took frequent and long showers to cool off. A surprising result, to go with his record-breaking water bill, was a proposal and theoretical model for a new class of vibrations that can convert a constant force, such as wind or water, to a mechanical oscillation.

Jul 26, 2024

Escaping kinetic traps: How molecular interactions make it possible to overcome the energy barrier

Posted by in categories: energy, nanotechnology, physics

In a paper in Physical Review Letters scientists from the department Living Matter Physics at the Max Planck Institute for Dynamics and Self-Organization (MPI-DS) propose a mechanism on how energy barriers in complex systems can be overcome. These findings can help to engineer molecular machines and to understand the self-organization of active matter.

Jul 26, 2024

Nonreciprocal interactions go nonlinear: Non-Hermitian dynamics observed in coupled nanoparticles

Posted by in category: nanotechnology

Using two optically-trapped glass nanoparticles, researchers observed a novel collective Non-Hermitian and non-linear dynamic driven by non-reciprocal interactions. This contribution expands traditional optical levitation with tweezer arrays by incorporating non-conservative interactions.

Jul 26, 2024

Quantum Breakthrough: 1.58 Dimensions Unlock Zero-Loss Energy Efficiency

Posted by in categories: computing, mobile phones, quantum physics

Topological insulators, capable of transmitting electricity without loss, may function in fractional dimensions such as 1.58. This breakthrough, combined with room-temperature operability, paves the way for advancements in quantum computing and energy efficiency through fractal structures.

What if we could find a way to make electric currents flow, without energy loss? A promising approach for this involves using materials known as topological insulators. They are known to exist in one (wire), two (sheet) and three (cube) dimensions; all with different possible applications in electronic devices. Theoretical physicists at Utrecht University, together with experimentalists at Shanghai Jiao Tong University, have discovered that topological insulators may also exist at 1.58 dimensions, and that these could be used for energy-efficient information processing. Their study was published recently in Nature Physics.

Classical bits, the units of computer operation, are based on electric currents: electrons running means 1, no electrons running means 0. With a combination of 0s and 1s, one can build all the devices that you use in your daily life, from cellphones to computers. However, while running, these electrons meet defects and impurities in the material, and lose energy. This is what happens when your device gets warm: the energy is converted into heat, and so your battery is drained faster.

Jul 26, 2024

Quantum Breakthrough: MRI for Molecules Unlocks Secrets of the Atomic World

Posted by in categories: biotech/medical, nanotechnology, quantum physics

A novel quantum sensor with exceptional resolution transforms atomic-level material analysis, paving the way for advancements in quantum technologies and sciences.

In a scientific breakthrough, an international research team from Germany’s Forschungszentrum Jülich and Korea’s IBS Center for Quantum Nanoscience (QNS) developed a quantum sensor capable of detecting minute magnetic fields at the atomic length scale. This pioneering work realizes a long-held dream of scientists: an MRI-like tool for quantum materials.

Quantum Sensor Development

Jul 26, 2024

NASA’s Perseverance Rover Scientists Find Intriguing Mars Rock

Posted by in categories: chemistry, space

The six-wheeled geologist found a fascinating rock that has some indications it may have hosted microbial life billions of years ago, but further research is needed.

A vein-filled rock is catching the eye of the science team of NASA’s Perseverance rover. Nicknamed “Cheyava Falls” by the team, the arrowhead-shaped rock contains fascinating traits that may bear on the question of whether Mars was home to microscopic life in the distant past.

Analysis by instruments aboard the rover indicates the rock possesses qualities that fit the definition of a possible indicator of ancient life. The rock exhibits chemical signatures and structures that could possibly have been formed by life billions of years ago when the area being explored by the rover contained running water. Other explanations for the observed features are being considered by the science team, and future research steps will be required to determine whether ancient life is a valid explanation.

Jul 26, 2024

Ongoing Cyberattack Targets Exposed Selenium Grid Services for Crypto Mining

Posted by in categories: cybercrime/malcode, robotics/AI

Discover how the SeleniumGreed campaign exploits exposed Selenium Grid services for crypto mining, posing risks to automated testing frameworks.

Jul 26, 2024

CrowdStrike Warns of New Phishing Scam Targeting German Customers

Posted by in category: cybercrime/malcode

CrowdStrike warns of targeted phishing campaign exploiting recent update incident. New threat actor targets German customers with fake installer.

Jul 26, 2024

Researchers Reveal ConfusedFunction Vulnerability in Google Cloud Platform

Posted by in category: cybercrime/malcode

Cybersecurity researchers have disclosed a privilege escalation vulnerability impacting Google Cloud Platform’s Cloud Functions service that an attacker could exploit to access other services and sensitive data in an unauthorized manner.

Tenable has given the vulnerability the name ConfusedFunction.

“An attacker could escalate their privileges to the Default Cloud Build Service Account and access numerous services such as Cloud Build, storage (including the source code of other functions), artifact registry and container registry,” the exposure management company said in a statement.

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