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Physics news
Researchers demonstrate room-temperature lasing in photonic-crystal surface-emitting laser
In a first for the field, researchers from The Grainger College of Engineering at the University of Illinois Urbana-Champaign have reported a photopumped lasing from a buried dielectric photonic-crystal surface-emitting laser ...
Optics & Photonics
16 hours ago
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Can the Large Hadron Collider snap string theory?
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, the strong nuclear force, ...
Quantum Physics
Jul 11, 2025
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The KATRIN experiment sets new constraints on general neutrino interactions
Neutrinos are elementary particles that are predicted to be massless by the standard model of particle physics, yet their observed oscillations suggest that they do in fact have a mass, which is very low. A further characteristic ...
Higgs-boson properties clarified through decay pattern analysis
The ATLAS collaboration finds evidence of Higgs-boson decays to muons and improves sensitivity to Higgs-boson decays to a Z boson and a photon.
General Physics
Jul 11, 2025
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152
Quantum objects' dual nature mapped with new formula for 'wave-ness' and 'particle-ness'
Since its development 100 years ago, quantum mechanics has revolutionized our understanding of nature, revealing a bizarre world in which an object can act like both waves and particles, and behave differently depending on ...
General Physics
Jul 11, 2025
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171
Data transfer speeds increase significantly through new optical chip design
Artificial intelligence systems like ChatGPT are notorious for being power-hungry. To tackle this challenge, a team from the Center for Optics, Photonics and Lasers (COPL) has come up with an optical chip that can transfer ...
Optics & Photonics
Jul 11, 2025
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Plastic-based spectrometers offer low-cost, compact solution for broadband spectral imaging
A multinational research team, including engineers from the University of Cambridge and Zhejiang University, has developed a breakthrough in miniaturized spectrometer technology that could dramatically expand the accessibility ...
Optics & Photonics
Jul 11, 2025
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Speed test of 'tunneling' electrons challenges alternative interpretation of quantum mechanics
Quantum mechanics describes the unconventional properties of subatomic particles, like their ability to exist in a superposition of multiple states, as popularized by the Schrödinger's cat analogy, and ability to slip through ...
Quantum battery model achieves theoretical speed limit, demonstrates genuine advantage
Over the past few years, researchers have developed various quantum technologies, alternatives to classical devices that operate by leveraging the principles of quantum mechanics. These technologies have the potential to ...
Physicists take step toward a holy grail for electron spins
For decades, ferromagnetic materials have driven technologies like magnetic hard drives, magnetic random access memories and oscillators. But antiferromagnetic materials, if only they could be harnessed, hold out even greater ...
General Physics
Jul 10, 2025
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102
Adding up Feynman diagrams to make predictions about real materials
Caltech scientists have found a fast and efficient way to add up large numbers of Feynman diagrams, the simple drawings physicists use to represent particle interactions. The new method has already enabled the researchers ...
General Physics
Jul 10, 2025
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Tunable laser light: Ring design could be used in telecom, medicine and more
Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and Technical University of Vienna (TU Wien) have invented a new type of tunable semiconductor laser that combines the best attributes ...
Optics & Photonics
Jul 10, 2025
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116
Real-time simulation makes understanding nonlinear quantum dynamics much easier
Many systems obey simple, linear rules: If you pull twice as hard on a spring, it stretches twice as far. However, when we introduce very large forces or complicated interactions, that linear rule breaks down into a "nonlinear" ...
General Physics
Jul 10, 2025
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Carefully tuned laser beam protects quantum spins from noise
Researchers have discovered a simple yet powerful way to protect atoms from losing information—a key challenge in developing reliable quantum technologies.
Optics & Photonics
Jul 10, 2025
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Scientists provide clear observation of spin and density modes in a two-component fluid of light
Recent physics studies have found that light can sometimes flow in unexpected ways, behaving like a so-called "superfluid." Superfluids, such as ultracold atomic gases or helium-4 below specific temperatures, are phases of ...
Nuclear mass measurement reveals new proton magic number
In nuclear physics, "magic numbers" identify specific numbers of protons or neutrons that lead to especially stable nuclei. Recognizing these numbers helps scientists better understand the structure of nuclei.
General Physics
Jul 9, 2025
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108
Calculating the electron's magnetic moment: State-dependent values emerge from Dirac equation
Quantum mechanics has a reputation that precedes it. Virtually everyone who has bumped up against the quantum realm, whether in a physics class, in the lab, or in popular science writing, is left thinking something like, ...
Quantum Physics
Jul 9, 2025
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129
Researchers discover more efficient way to route information in quantum computers
Quantum computers have the potential to revolutionize computing by solving complex problems that stump even today's fastest machines. Scientists are exploring whether quantum computers could one day help streamline global ...
Quantum Physics
Jul 9, 2025
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New particle acceleration strategy uses cold atoms to unlock cosmic mysteries
Scientists have used ultracold atoms to successfully demonstrate a novel method of particle acceleration that could unlock a new understanding of how cosmic rays behave, a new study reveals.
General Physics
Jul 9, 2025
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74
Keeping the photon in the dark: A new method for full control of quantum dots
Excitons—bound pairs of electrons and an electron hole—are quasiparticles that can arise in solids. While so-called "bright" excitons emit light and are therefore accessible, dark excitons are optically inactive. As a ...
Optics & Photonics
Jul 9, 2025
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More news
Stoichiometric crystal shows promise in quantum memory
Multisynapse optical network outperforms digital AI models
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Physicists observe image rotation in plasma
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How the genome defends itself against internal enemies
An approach to realize heralded photon storage in a Rydberg superatom
Light and heavy electrons cooperate in magic-angle superconductors
Quantum enhancement discovery could improve medical technologies
Cracking the quantum code: Light and glass are set to transform computing
New models improve predictions of snow, rock and ice avalanches
