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Publié le mercredi 5 juillet 2023

⇒ https://phys.org/physics-news/

Articles syndiqués tirés de ce site

Pushing the limit of the periodic table with superheavy elements
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Scientists from Massey University in New Zealand, the University of Mainz in Germany, Sorbonne University in France, and the Facility for Rare Isotope Beams (FRIB) discuss the limit of the periodic table and revising the concept of the "island of stability" with recent advances in (…)
Research team establishes synthetic dimension dynamics to manipulate light
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In the realm of physics, synthetic dimensions (SDs) have emerged as one of the frontiers of active research, offering a pathway to explore phenomena in higher-dimensional spaces, beyond our conventional 3D geometrical space. The concept has garnered significant attention, especially in (…)
Spectroscopy and theory shed light on excitons in semiconductors
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From solar panels on our roofs to the new OLED TV screens, many everyday electronic devices simply wouldn’t work without the interaction between light and the materials that make up semiconductors. A new category of semiconductors is based on organic molecules, which largely consist of carbon, (…)
Continuous non-invasive glucose sensing on the horizon with the development of a new optical sensor
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For decades, people with diabetes have relied on finger pricks to withdraw blood or adhesive microneedles to measure and manage their glucose levels. In addition to being painful, these methods can cause itching, inflammation and infection.
2D optoelectronic neuron array achieves broadband and low-loss optical nonlinearity accessible with ambient light
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Light can compute functions during its propagation and interaction with structured materials, with high speed and low energy consumption. Achieving universal computing using all-optical neural networks requires optical activation layers with nonlinear dependence on input. However, the existing (…)
A method to accurately center quantum dots within photonic chips
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Devices that capture the brilliant light from millions of quantum dots, including chip-scale lasers and optical amplifiers, have made the transition from laboratory experiments to commercial products. But newer types of quantum-dot devices have been slower to come to market because they (…)
Cracking the quantum code : Simulations track entangled quarks
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Today, the word "quantum" is everywhere—in company names, movie titles, even theaters. But at its core, the concept of a quantum—the tiniest, discrete amount of something—was first developed to explain the behavior of the smallest bits of matter and energy.
Quantum computers can solve combinatorial optimization problems more easily than conventional methods, research shows
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The traveling salesman problem is considered a prime example of a combinatorial optimization problem. Now a Berlin team led by theoretical physicist Prof. Dr. Jens Eisert of Freie Universität Berlin and HZB has shown that a certain class of such problems can actually be solved better and much (…)
Breakthrough in melting point prediction : 100-year-old physics problem solved
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A longstanding problem in physics has finally been cracked by Professor Kostya Trachenko of Queen Mary University of London’s School of Physical and Chemical Sciences. His research, published in Physical Review E, unveils a general theory for predicting melting points, a fundamental property (…)
Projection mapping leaves the darkness behind
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Images projected onto objects in the real world create impressive displays that educate and entertain. However, current projection mapping systems all have one common limitation : they only work well in the dark. In a study recently published in IEEE Transactions on Visualization and Computer (…)
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