Menu

Blog

Archive for the ‘particle physics’ category: Page 31

Aug 21, 2024

First visualization of valence electrons reveals fundamental nature of chemical bonding

Posted by in categories: chemistry, engineering, particle physics

The distribution of outermost shell electrons, known as valence electrons, of organic molecules was experimentally observed for the first time by a team led by Nagoya University in Japan. As the interactions between atoms are governed by the valence electrons, their findings shine light on the fundamental nature of chemical bonds, with implications for pharmacy and chemical engineering. The results were published in the Journal of the American Chemical Society.

Aug 21, 2024

New heaviest exotic antimatter nucleus discovered

Posted by in category: particle physics

Scientists studying the tracks of particles streaming from six billion collisions of atomic nuclei at the Relativistic Heavy Ion Collider (RHIC)—an “atom smasher” that recreates the conditions of the early universe—have discovered a new kind of antimatter nucleus, the heaviest ever detected. Composed of four antimatter particles—an antiproton, two antineutrons, and one antihyperon—these exotic antinuclei are known as antihyperhydrogen-4.

Aug 21, 2024

Physicists develop new model that describes how filaments assemble into active foams

Posted by in categories: biological, nanotechnology, particle physics, robotics/AI

Many fundamental processes of life, and their synthetic counterparts in nanotechnology, are based on the autonomous assembly of individual particles into complex patterns. LMU physicist Professor Erwin Frey, Chair of Statistical and Biological Physics at LMU Munich and member of the ORIGINS Excellence Cluster, investigates the fundamental principles of this self-organization.

Aug 21, 2024

How a quantum sensor on the ISS could revolutionize space exploration

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

I expect that space-based atom interferometry will lead to exciting new discoveries and fantastic quantum technologies impacting everyday life, and will transport us into a quantum future.

Aug 21, 2024

Can massive particles be seen as soliton solutions?

Posted by in categories: information science, particle physics

I wonder if the common relativistic wave equations contain a sort of soliton solutions, which might be considered as particle localisations.

Aug 21, 2024

Entanglement Entropies of Nuclear Systems Grow as the Volume of those Systems

Posted by in categories: particle physics, quantum physics

Quantum entanglement—spooky action at a distance—works differently inside the nuclei of atoms than it does in other systems.

Aug 21, 2024

Astronomers Discover Record-Breaking Twin Quasars in the Early Universe

Posted by in categories: cosmology, evolution, particle physics

Astronomers have identified the earliest pair of quasars, shining 900 million years post-Big Bang, revealing insights into galaxy mergers and the reionization era of the Universe.

An international team of astronomers, including members from the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), has discovered the earliest known pair of quasars using the Subaru Telescope and Gemini North telescope, both situated on Maunakea in Hawai’i. These quasars, powered by actively feeding supermassive black holes, emit intense radiation. This significant discovery will provide insights into the early evolution of the Universe.

About 400 million to 1 billion years after the Big Bang, something, possibly a combination of sources, unleashed enough radiation to strip the electrons from most of the hydrogen atoms, completely altering the nature of the Universe. Quasars are one potential source of the radiation that caused this “reionization” of the Universe. When matter falls into the supermassive black hole at the center of a galaxy, the matter heats up and releases radiation in a phenomenon known as a quasar.

Aug 20, 2024

Next-Gen Spectroscopy: New Tunable Laser Method Achieves Unprecedented Precision

Posted by in categories: computing, cosmology, particle physics

Innovative diode laser spectroscopy provides precise monitoring of the color changes in the sweeping laser at each moment, establishing new benchmarks for frequency metrology and practical applications.

Since the laser’s debut in the 1960s, laser spectroscopy has evolved into a crucial technique for investigating the intricate structures and behaviors of atoms and molecules. Advances in laser technology have significantly expanded its potential. Laser spectroscopy primarily consists of two key types: frequency comb-based laser spectroscopy and tunable continuous-wave (CW) laser spectroscopy.

Comb-based laser spectroscopy enables extremely precise frequency measurements, with an accuracy of up to 18 digits. This remarkable precision led to a Nobel Prize in Physics in 2005 and has applications in optical clocks, gravity sensing, and the search for dark matter. Frequency combs also enable high-precision, high-speed broadband spectroscopy because they combine large bandwidth with high spectral resolution.

Aug 20, 2024

Is the Brain A Quantum Computer? New Insights Say It Might Be

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

There is a theory dubbed “quantum consciousness,” which stipulates that brain functions and consciousness are derived from quantum effects like the collapse of the quantum wavefunction.

This is a strange part of quantum physics, where particles go from a state of simultaneous properties to a more “normal” state where they have one defined characteristic. It has notably been popularized by the concept of Schrödinger’s cat.

Aug 20, 2024

Scientists suggest a new method to break the Laws of Physics

Posted by in category: particle physics

In the search for new particles and forces in nature, physicists are on the hunt for behaviors within atoms and molecules that are forbidden by the tried-and-true Standard Model of particle physics. Any deviations from this model could indicate what physicists affectionately refer to as “new physics.”

Caltech assistant professor of physics Nick Hutzler and his group are in pursuit of specific kinds of deviations that would help solve the mystery of why there is so much matter in our universe. When our universe was born about 14 billion years ago, matter and its partner, antimatter, are believed to have existed in equal measure.

Typically, matter and antimatter cancel each other out, but some kind of asymmetry existed between the different types of particles to cause matter to win out over antimatter. Hutzler’s group uses tabletop experiments to look for symmetry violations—the deviant particle behaviors that led to our lopsided matter-dominated universe.

Page 31 of 591First2829303132333435Last