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Categories: Physics: Optics, Physics: Quantum Physics
Published Sensing and controlling microscopic spin density in materials


Researchers found a way to tune the spin density in diamond by applying an external laser or microwave beam. The finding could open new possibilities for advanced quantum devices.
Published Butterfly-inspired films create vibrant colors while passively cooling objects



New films inspired by butterfly wings circumvent the heating effect usually experienced by colored objects absorbing light on a hot day. The new films could be used on the outside of buildings, vehicles and equipment to reduce the energy needed for cooling while preserving vivid color properties.
Published Quantum discovery: Materials can host D-wave effects with F-wave behaviors


In a potential boon for quantum computing, physicists have shown that topologically protected quantum states can be entangled with other, highly manipulable quantum states in some electronic materials.
Published Super Radar: Breakthrough radar research overcomes a nearly century-old trade-off between wavelength and distance resolution


New interference radar functions improve the distance resolution between objects using radar waves. The results may have important ramifications in military, construction, archaeology, mineralogy and many other domains of radar applications. It addresses a nine decades-old problem that requires scientists and engineers to sacrifice detail and resolution for observation distance -- underwater, underground, and in the air.
Published Fiber optic cables detect and characterize earthquakes



The same fiber optic networks that provide internet can simultaneously act as earthquake sensors, as demonstrated in a new study.
Published Calculations reveal high-resolution view of quarks inside protons


A collaboration of nuclear theorists has used supercomputers to predict the spatial distributions of charges, momentum, and other properties of 'up' and 'down' quarks within protons. The calculations show that the up quark is more symmetrically distributed and spread over a smaller distance than the down quark.
Published Thermal imaging innovation allows AI to see through pitch darkness like broad daylight


Engineers have developed HADAR, or heat-assisted detection and ranging.
Published Absence of universal topological signatures in high harmonic generation


Theoreticians report that they found no evidence of any universal topological signatures after performing the first ab initio investigation of high harmonic generation from topological insulators.
Published Sun 'umbrella' tethered to asteroid might help mitigate climate change



Earth is rapidly warming and scientists are developing a variety of approaches to reduce the effects of climate change. An astronomer has proposed a novel approach -- a solar shield to reduce the amount of sunlight hitting Earth, combined with a tethered, captured asteroid as a counterweight. Engineering studies using this approach could start now to create a workable design that could mitigate climate change within decades.
Published Nuclear spin's impact on biological processes uncovered


Researchers have discovered that nuclear spin influences biological processes, challenging long-held beliefs. They found that certain isotopes behave differently in chiral environments, affecting oxygen dynamics and transport. This breakthrough could advance biotechnology, quantum biology, and NMR technology, with potential applications in isotope separation and medical imaging.
Published Scientists create novel approach to control energy waves in 4D


Everyday life involves the three dimensions or 3D -- along an X, Y and Z axis, or up and down, left and right, and forward and back. But, in recent years scientists have explored a 'fourth dimension' (4D), or synthetic dimension, as an extension of our current physical reality.
Published When electrons slowly vanish during cooling


Many substances change their properties when they are cooled below a certain critical temperature. Such a phase transition occurs, for example, when water freezes. However, in certain metals there are phase transitions that do not exist in the macrocosm. They arise because of the special laws of quantum mechanics that apply in the realm of nature's smallest building blocks. It is thought that the concept of electrons as carriers of quantized electric charge no longer applies near these exotic phase transitions. Researchers have now found a way to prove this directly. Their findings allow new insights into the exotic world of quantum physics.
Published New method improves proton acceleration with high power laser


Bringing protons up to speed with strong laser pulses -- this still young concept promises many advantages over conventional accelerators. For instance, it seems possible to build much more compact facilities. Prototypes to date, however, in which laser pulses are fired at ultra-thin metal foils, show weaknesses -- especially in the frequency with which they can accelerate protons. An international working group has tested a new technique: In this approach, frozen hydrogen acts as a 'target' for the laser pulses.
Published Novel Raman technique breaks through 50 years of frustration


Researchers have developed a new technique that vastly improves readings of protein-to-ligand interactions through Raman spectroscopy.
Published Engineering team uses diamond microparticles to create high security anti-counterfeit labels



Researchers have developed a pioneering technological solution that counterfeiters have no response to.
Published How atomic nuclei vibrate


Using ultra-high-precision laser spectroscopy on a simple molecule, a group of physicists has measured the wave-like vibration of atomic nuclei with an unprecedented level of precision. The physicists report that they can thus confirm the wave-like movement of nuclear material more precisely that ever before and that they have found no evidence of any deviation from the established force between atomic nuclei.
Published Scientists caught Hofstadter's butterfly in one of the most ancient materials on Earth


Researchers have revisited one of the most ancient materials on Earth -- graphite, and discovered new physics that has eluded the field for decades.
Published A new type of quantum bit in semiconductor nanostructures


Researchers have created a quantum superposition state in a semiconductor nanostructure that might serve as a basis for quantum computing. The trick: two optical laser pulses that act as a single terahertz laser pulse.
Published 'Quantum avalanche' explains how nonconductors turn into conductors



The study takes a new approach to answer a long-standing mystery about insulator-to-metal transitions.
Published Detection of bacteria and viruses with fluorescent nanotubes


The new carbon nanotube sensor design resembles a molecular toolbox that can be used to quickly assemble sensors for a variety of purposes -- for instance for detecting bacteria and viruses.