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Archive for the ‘particle physics’ category

Sep 7, 2024

This super-dense cosmic ‘pasta’ is the strongest material in the Universe

Posted by in categories: materials, particle physics

By the ‘strength’ of a material, we usually mean the degree to which it can withstand deformation by an external force. So, the strongest materials are generally those with high densities because the closer the constituent atoms are, the greater the resistance they have to further compression.

Sep 6, 2024

Quantum Computing for High-Energy Physics: State of the Art and Challenges

Posted by in categories: information science, particle physics, quantum physics, robotics/AI

Roadmap: Quantum algorithms and quantum machine learning could assist high-energy physics, ranging from studying neutrino oscillations to reconstructing particle trajectories in colliders.

Sep 6, 2024

How Subjective is Entropy Really?

Posted by in categories: computing, particle physics

Physics stack exchange has recently been debating the question of the subjectivity of entropy.

I recommend Andrew Steane answer.


I’m a computer scientist doing some research that touches on basic concepts in statistical mechanics: macrostate, microstate and entropy. The way I’m currently conceiving of it is that the microstate includes all the information to perfectly the describe the state of a system, the macrostate provides some of the information, allowing you to narrow down the possibilities to a subset of states and a distribution over them, and the entropy roughly says how much information is still missing after you specify the macrostate.

Continue reading “How Subjective is Entropy Really?” »

Sep 6, 2024

The First Nuclear Clock Will Test if Fundamental Constants Change

Posted by in category: particle physics

An ultra-precise measurement of a transition in the hearts of thorium atoms gives physicists a tool to probe the forces that bind the universe.

Sep 5, 2024

Quark distribution in light–heavy mesons is mapped using innovative calculations

Posted by in categories: innovation, particle physics

Form factors can be tested by collider experiments.

Sep 5, 2024

CEVA & CERN: Where Edge AI and Particle Physics Intersect

Posted by in categories: internet, particle physics, robotics/AI

About 63% of the world population access the internet [Source: Statista] and a majority of them experience the internet through webpages. As such, the general population refers to the internet and the web pages interchangeably. Of course, those in the technology arena do know the difference but may or may not remember when and where the world wide web (WWW) was invented. Without its invention, the internet experience of today will not be the same.

100% of all living creatures experience something automatically and that is their “mass”, interchangeably and inaccurately referred to as “weight” by the general population. Of course, those who remember their physics know the difference. While material mass is taken for granted in general physics, there is a field of physics that tries to explain what gives materials their mass. The existence of the mass-giving field was confirmed when the Higgs boson particle was discovered.

The organization that is behind both the WWW invention and the Higgs boson discovery and many other remarkable inventions is CERN. The World Wide Web was invented in 1989 by Tim Berners-Lee while working at CERN. The existence of the mass-giving field was confirmed in 2012, when the Higgs boson particle was discovered at CERN.

Sep 4, 2024

An Impossible Particle May Somehow Fit Into General Relativity After All, Scientists Say

Posted by in categories: mathematics, particle physics

One mathematical tweak could turn theoretical physics on its head.

Sep 4, 2024

Panprotopsychism: Panpsychism

Posted by in categories: neuroscience, particle physics, quantum physics

, while an interesting thought experiment, does not seem to account for the fact that many phenomena are materialistic or physical enough to have no resemblance with the qualities we typically attribute to consciousness, such as experience and motive.

Panprotopsychism, by contrast, does not require matter to be intrinsically conscious, only that it be comprised of features equaling consciousness when combined.

Continue reading “Panprotopsychism: Panpsychism” »

Sep 4, 2024

Can we solve quantum theory’s biggest problem by redefining reality?

Posted by in categories: particle physics, quantum physics

With its particles in two places at once, quantum theory strains our common sense notions of how the universe should work. But one group of physicists says we can get reality back if we just redefine its foundations.

By Karmela Padavic-Callaghan

Sep 4, 2024

The world’s fastest single-shot 2D imaging technique films ultrafast dynamics in flames

Posted by in categories: particle physics, space travel, sustainability

Candle flames and airplane engines produce tiny soot particles from polycyclic aromatic hydrocarbons (PAHs) as their precursors, both of which are harmful to humans and the environment. These carbon-based particles are also common in space, making up 10–12% of interstellar matter, and are becoming valuable for use in electronic devices and sustainable energy. However, the fingerprint signals of soot and PAHs have very short lifespans in flames—lasting only a few billionths to millionths of a second. This brief existence requires very fast cameras to capture their behavior in both space and time.

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