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Physics news
Non-linear effects in coupled optical microcavities
Scientists from the Faculty of Physics of the University of Warsaw have demonstrated exciton-polariton lasing and parametric scattering of exciton-polaritons in a system of coupled optical microcavities. The results have ...
Optics & Photonics
6 minutes ago
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A single-molecule laser nanospectroscopy technique with micro-electron volt energy resolution
When molecules are excited, they can give rise to a variety of energy conversion phenomena, such as light emission and photoelectric or photochemical conversion. To unlock new energy conversion functions in organic materials, ...
Chaotic electrons heed 'limit' in strange metals
Electrons in metals try to behave like obedient motorists, but they end up more like bumper cars. They may be reckless drivers, but a new Cornell-led study confirms this chaos has a limit established by the laws of quantum ...
General Physics
4 hours ago
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Water as a metal
Under normal conditions, pure water is an almost perfect insulator. Water only develops metallic properties under extreme pressure, such as exists deep inside of large planets. Now, an international collaboration has used ...
Condensed Matter
3 hours ago
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132
Superconductivity in high-Tc cuprates: 'From maximal to minimal dissipation'—a new paradigm?
Researchers from the University of Bristol's School of Physics used some of Europe's strongest continuous magnetic fields to uncover evidence of exotic charge carriers in the metallic state of copper-oxide high-temperature ...
Superconductivity
5 hours ago
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Machine-learning method to find optimal solutions in extremely large design spaces
Electrical engineers at Duke University have devised a new method for solving difficult design problems with many potential solutions in a large design space using machine learning. Dubbed the "neural-adjoint method," the ...
Optics & Photonics
5 hours ago
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130
Novel method for fast 3D microscopy
In the past, many discoveries have been made because better, more accurate measurement methods have become available, making it possible to obtain data from previously unexplored phenomena. For example, high-resolution microscopy ...
Optics & Photonics
5 hours ago
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Exploring quantum systems that don't find equilibrium
Some physical systems, especially in the quantum world, do not reach a stable equilibrium even after a long time. An ETH researcher has now found an elegant explanation for this phenomenon.
Quantum Physics
Jul 27, 2021
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Northern English verbal mannerisms being lost
Within just 45 years south eastern English pronunciations will be used across the UK, according to new research from the Universities of Portsmouth and Cambridge.
General Physics
Jul 27, 2021
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365
Optical innovation could calm the jitters of high-power lasers
The Berkeley Lab Laser Accelerator (BELLA) Center at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has developed and tested an innovative optical system to precisely measure and control the ...
Optics & Photonics
Jul 27, 2021
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389
How quantum fields could be used to break low-temperature records
At first glance, heat and cold do not have much to do with quantum physics. A single atom is neither hot nor cold. Temperature can traditionally only be defined for objects that consist of many particles. But at TU Wien, ...
Quantum Physics
Jul 27, 2021
1
366
Researchers create powerful quantum source with meta-lens array
Researchers for the first time have demonstrated a quantum light source based on a meta-lens array. The approach offers a promising platform for both high-dimensional photon entanglement and the coherent control of multiple ...
Optics & Photonics
Jul 27, 2021
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211
Why beer mats do not fly in a straight line
Anyone who has ever failed to throw a beer mat into a hat should take note: physicists at the University of Bonn have discovered why this task is so difficult. However, their study also suggests how to significantly increase ...
General Physics
Jul 27, 2021
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138
Promising new technique is bringing the microscopic details of the brain into sharper focus
One of the greatest challenges in science is the study of the brain's anatomy and cellular architecture. A promising new technique, developed by scientists in Italy, the UK and Germany, is now bringing the microscopic details ...
Optics & Photonics
Jul 27, 2021
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389
Under pressure, 'squishy' compound reacts in remarkable ways
Remarkable things happen when a "squishy" compound of manganese and sulfide (MnS2) is compressed in a diamond anvil, say researchers from the University of Rochester and the University of Nevada, Las Vegas (UNLV).
General Physics
Jul 27, 2021
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Amplified spontaneous emission source in a co-pumping, single-frequency Raman fiber amplifier
Recently, researchers from the Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences (CAS) have provided the new idea of co-pumping single-frequency Raman amplifiers. Relevant result was ...
Optics & Photonics
Jul 27, 2021
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Scientists discover how high-energy electrons strengthen magnetic fields
More than 99% of the visible universe exists in a superheated state known as plasma—an ionized gas of electrons and ions. The motion of these charged particles produces magnetic fields that form an interstellar magnetic ...
General Physics
Jul 26, 2021
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The mechanics of puncture finally explained
The feeling of a needle piercing skin is familiar to most people, especially recently as COVID-19 vaccinations gain momentum. But what exactly happens when a needle punctures skin? The answer is revealed in a new paper published ...
General Physics
Jul 26, 2021
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263
Through the thin-film glass, researchers spot a new liquid phase
Research published in the Proceedings of the National Academy of Sciences describes a new type of liquid in thin films, which forms a high-density glass. Results generated in this study, conducted by researchers in Penn's ...
Condensed Matter
Jul 26, 2021
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ATLAS reports first observation of WWW production
The ATLAS Collaboration at CERN announces the first observation of "WWW production": The simultaneous creation of three massive W bosons in high-energy Large Hadron Collider (LHC) collisions.
General Physics
Jul 26, 2021
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Antimatter from laser pincers
An X-ray vision-like camera to rapidly retrieve 3D images
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Common floral bacteria can induce pollen germination
Icy waters of 'Snowball Earth' may have spurred early organisms to grow bigger
Study: How a unique family of bacteria hides from the immune system
Exploring blood types of Neanderthal and Denisovan individuals
Earth's 'vital signs' worsening as humanity's impact deepens
Oldest fossils of animals may be in Canada rocks, study says
A caffeine buzz helps bees learn to find specific flowers
Molecular atlas reveals how brain cells develop
Nanostructures enable record high-harmonic generation
Capturing electrons in space
Anomalous quantum transport phenomena observed in fractal photonic lattices
The origin of bifurcated current sheets explained
Hemp goes 'hot' due to genetics, not environmental stress
Double-strand RNA exhibits traits different from single-stranded RNA
National parochialism widespread, worldwide
Bacteria from nematodes could be used to kill fire ants
