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Archive for the ‘particle physics’ category: Page 234

Apr 6, 2022

Oxford spinoff demonstrates world-first hypersonic “projectile fusion”

Posted by in categories: nuclear energy, particle physics

Oxford spinoff First Light Fusion says its novel “projectile” approach offers “the fastest, simplest and cheapest route to commercial fusion power.” The company is now celebrating a significant breakthrough with its first confirmed fusion reaction.

The nuclear fusion space is heating up, if you’ll pardon the pun, as the world orients itself toward a clean energy future. Where current nuclear power plants release energy by splitting atoms in fission reactions, fusion reactors will release energy in the same way the Sun does – by smashing atoms together so hard and so fast that they fuse into higher elements.

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Apr 2, 2022

Bubbles give off weird light when popped because of quantum physics

Posted by in categories: particle physics, quantum physics

When a bubble pops in a liquid, it can produce a flash of light, which we now know is thanks to quantum mechanics.

Sonoluminescence is a phenomenon in which small bubbles, produced and fixed in place by an ultrasound wave in a liquid, collapse and make particles of light, or photons. Physicists have known about this process for decades, but the mechanisms behind it weren’t fully known.

Apr 1, 2022

Could the Information Paradox Finally Be Resolved?

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

The information paradox may finally be resolved with the help of the holographic theory – but this time on a fractal scale.

Ever since Hawking predicted the thermal emission of black holes and their subsequent evaporation, the question arose as to where this information goes. In the context of the Copenhagen interpretation of quantum mechanics – which states that the information about a system is entirely encoded in its wave function – information is always conserved. Thus, any loss in information, like that predicted by Hawking and his evaporating black holes, would violate quantum theory. This problem is known as the information paradox.

To resolve this paradox, physicists have been actively looking for a mechanism to explain how the information of the infalling particles re-emerges in the outgoing radiation. To begin, they need to determine the entropy of the Hawking radiation.

Apr 1, 2022

Solar storms can destroy satellites with ease expert explains the science

Posted by in categories: particle physics, satellites, science

Geomagnetic storms occur when space weather hits and interacts with Earth. Space weather is caused by fluctuations within the sun that blast electrons, protons and other particles into space. I study the hazards space weather poses to space-based assets and how scientists can improve the models and prediction of space weather to protect against these hazards.

When space weather reaches Earth, it triggers many complicated processes that can cause a lot of trouble for anything in orbit. And engineers like me are working to better understand these risks and defend satellites against them.

Apr 1, 2022

Groundbreaking technique yields important new details on possible ‘fifth force’

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

Researchers uncovered new information about an important subatomic particle and a long-theorized fifth force of nature.


A group of researchers have used a groundbreaking new technique to reveal previously unrecognized properties of technologically crucial silicon crystals and uncovered new information about an important subatomic particle and a long-theorized fifth force of nature.

The research was an international collaboration conducted at the National Institute of Standards and Technology (NIST). Dmitry Pushin, a member of the University of Waterloo’s Institute for Quantum Computing and a faculty member in Waterloo’s Department of Physics and Astronomy, was the only Canadian researcher involved in the study. Pushin was interested in producing high-quality quantum sensors out of perfect crystals.

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Mar 31, 2022

Information Could Be the 5th State of Matter, Proving We Live in a Simulation

Posted by in categories: cosmology, particle physics

If true, this idea could even help us understand all of the dark matter in our universe.


Trying to make sense of information is a universal daily experience. For physicist Melvin Vopson, this pursuit goes well beyond the mundane—he’s trying to prove that information has a physical presence. It’s a weighty task that could lead to new insights about how we can manage the future of information storage. It could also lead to a fundamental shift in how we think about the universe.

Vopson, who studies information theory at University of Portsmouth in the United Kingdom, wants to use an experiment to confirm that elementary particles have measurable mass. It would involve a matter-antimatter annihilation process that would shoot a beam of positrons at electrons in a piece of metal. Positrons and electrons are both subatomic particles, with the same mass and magnitude of charge. However, positrons are positively charged, and electrons are negatively charged.

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Mar 30, 2022

A Mars city will need to overcome this tiny obstacle to survive

Posted by in categories: particle physics, space

Now, though, new research is helping us understand this strange dusty environment and paving the way for safer Mars missions in the future — like a crewed landing and possibly even a permanent settlement.

The problem of dust

Mars’s surface is covered in fine particles of dust. With its smaller size than Earth, it has lower gravity – around one-third of the gravity here – and a thinner atmosphere, which is around one percent of the density of Earth’s atmosphere. That means it is easy for winds to form and to pick up those dust particles, blowing them into a dust storm.

Mar 30, 2022

‘Cannibal’ coronal mass ejection will hit Earth at nearly 2 million mph, scientists say

Posted by in categories: particle physics, space

The sunspot, called AR2975, has been shooting out flares of electrically charged particles from the sun’s plasma soup since Monday (March 28). Sunspots are areas on the sun’s surface where powerful magnetic fields, created by the flow of electrical charges, knot into kinks before suddenly snapping. The resulting release of energy launches bursts of radiation called solar flares, or explosive jets of solar material called coronal mass ejections (CMEs).

Related: Strange new type of solar wave defies physics

Cannibal coronal mass ejections happen when fast-moving solar eruptions overtake earlier eruptions in the same region of space, sweeping up charged particles to form a giant, combined wavefront that triggers a powerful geomagnetic storm.

Mar 30, 2022

HB11 Energy demonstrates nuclear fusion using high-power lasers

Posted by in categories: nuclear energy, particle physics

Australia’s first fusion energy company HB11 Energy has demonstrated a world-first ‘material’ number of fusion reactions by a private company, producing ten times more fusion reactions than expected based on earlier experiments at the same facility. The technology utilizes high-power, high-precision lasers to start non-thermal fusion reactions between hydrogen and boron-11 rather than heating hydrogen isotopes to hundred-million-degrees temperatures.

This approach was predicted in the 1970s at UNSW by Australian theoretical physicist and HB11 Energy co-founder Professor Heinrich Hora. It differs radically from most other fusion efforts to date that require heating of hydrogen isotopes to millions of degrees.

Nuclear fusion powers the Sun and other stars as hydrogen atoms fuse together to form helium, and the matter is converted into energy. The Sun accomplishes fusion by having a huge amount of hydrogen atoms packed into a plasma that’s superheated to tens of millions of degrees at its core. At these temperatures, the hydrogen atoms move so fast and eventually reach speeds high enough to bring the ions close enough together that they smack into each other and fuse, releasing the energy that warms our planet.

Mar 29, 2022

Team at Borexino shows it is possible to have directional and energy sensitivity when studying solar neutrinos

Posted by in categories: electronics, particle physics

A group of researchers working with data from the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy, has shown that it is possible to measure solar neutrinos with both directional and energy sensitivity. Two teams within the group have written papers describing the work by the group—one of them has published their work in Physical Review D, the other in Physical Review Letters.

The Borexino detector was first proposed back in 1986 and its structure was completed in 2004. In May of 2007, it began providing researchers with data. Its purpose has been to measure neutrino fluxes in proton-proton chains. The detector, which is currently being dismantled, was made using 280 metric tons of radio-pure liquid scintillator which was shielded by a layer of water. Detections were made as scattered off electrons in the scintillator—the light that was emitted was picked up by sensors lining the tank.

For most of its existence, data from the Borexino detector was an excellent source of high-resolution sensitivity data down to low energy thresholds, but it offered little in the way of directional trajectories. In this new effort, the researchers found a way to use the data from the detector with data from another detector to provide trajectory information.