Scientists release new map of all the matter in the universe

Sometimes to know what the matter is, you have to find it first.

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Predicting human group sizes with physics

Only by knowing the average number of friends each person has, scientists at Complexity Science Hub (CSH) were able to predict the group sizes of people in a computer game. For this purpose, they modeled the formation of social groups on an example from physics, namely the self-organization of particles with spin.

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Modulating magnetism in a Weyl semi-metal using current-assisted domain wall motion

Spintronic devices are emerging technologies that exploit the intrinsic spin of electrons to store and process data. These technologies have the potential to outperform conventional electronics both in terms of speed and energy-efficiency.

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Scientists observe 'quasiparticles' in classical systems for the first time

Starting with the emergence of quantum mechanics, the world of physics has been divided between classical and quantum physics. Classical physics deals with the motions of objects we typically see every day in the macroscopic world, while quantum physics explains the exotic behaviors of elementary particles in the microscopic world.

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Transistors repurposed as microchip 'clock' address supply chain weakness

Microchip fab plants in the United States can cram billions of data processing transistors onto a tiny silicon chip, but a critical device, in essence a "clock," to time the operation of those transistors must be made separately—creating a weak point in chip security and the supply line. A new approach uses commercial chip fab materials and techniques to fabricate specialized transistors that serve as the building block of this timing device, addressing the weak point and enabling new functionality through enhanced integration.

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Study demonstrates a new method to search for meV dark photons

Approximately 85% of the mass of our galaxy is comprised by dark matter, matter that does not emit, absorb or reflect light and thus cannot be directly observed. While several studies have hinted at or theorized about its composition, it remains one of the greatest unresolved physics problems.

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Excavation of massive underground caverns for Deep Underground Neutrino Experiment halfway complete

Deep below the surface in South Dakota, construction crews have been working tirelessly to carve out a network of caverns and tunnels that one day will house a huge neutrino experiment. Their efforts are paying off: With almost 400,000 tons of rock extracted from the earth, the excavation is now half complete.

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