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May 16, 2024

New method of wavefunction matching helps solve quantum many-body problems

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

Strongly interacting systems play an important role in quantum physics and quantum chemistry. Stochastic methods such as Monte Carlo simulations are a proven method for investigating such systems. However, these methods reach their limits when so-called sign oscillations occur.

This problem has now been solved by an international team of researchers from Germany, Turkey, the U.S., China, South Korea and France using the new method of wavefunction matching. As an example, the masses and radii of all nuclei up to mass number 50 were calculated using this method. The results agree with the measurements, the researchers now report in the journal Nature.

All matter on Earth consists of tiny particles known as atoms. Each atom contains even smaller particles: protons, neutrons and electrons. Each of these particles follows the rules of quantum mechanics. Quantum mechanics forms the basis of quantum many-body theory, which describes systems with many particles, such as .

May 16, 2024

A new family of beautiful-charming tetraquarks: Study illuminates a new horizon within quantum chromodynamics

Posted by in categories: particle physics, quantum physics

Exploring the complex domain of subatomic particles, researchers at the The Institute of Mathematical Science (IMSc) and the Tata Institute of Fundamental Research (TIFR) have recently published a novel finding in the journal Physical Review Letters. Their study illuminates a new horizon within quantum chromodynamics (QCD), shedding light on exotic subatomic particles and pushing the boundaries of our understanding of the strong force.

May 16, 2024

Spooky states and figure eights: Stepping into the quantum computing ‘ring’

Posted by in categories: computing, cosmology, quantum physics

Deep in outer space, invisible hands mold the universe. One is dark matter, an unseen substance thought to bind distant galaxies. The other is dark energy, a force believed to push stellar structures apart with gravity-defying strength.

May 16, 2024

Researchers elucidate ultrafast laser-induced solid-to-overdense-plasma transitions

Posted by in categories: biotech/medical, nuclear energy

The interaction of solids with high-intensity ultra-short laser pulses has enabled major technological breakthroughs over the past half-century. On the one hand, laser ablation of solids offers micromachining and miniaturization of elements in medical or telecommunication devices. On the other hand, accelerated ion beams from solids using intense lasers may pave the way for new opportunities for cancer treatment with laser-based proton therapy, fusion energy research, and analysis of cultural heritage.

May 16, 2024

Research team develops electromagnetic wave absorbers with strong absorption and broad effective bandwidth

Posted by in category: materials

A research team from the Department of Functional Composites in Composites Research Division at Korea Institute of Materials Science (KIMS) has successfully developed electromagnetic wave absorbers based on metal-organic frameworks (MOFs) that enhance dielectric and magnetic losses in the gigahertz (GHz) frequency band. The research was published in the journal Advanced Composites and Hybrid Materials on February 5, 2024.

May 16, 2024

Advancing transistor technology with triply-degenerate semimetal PtBi₂

Posted by in categories: computing, physics

Despite its promising characteristics in condensed matter physics, the triply-degenerate semimetal PtBi2 has been largely unexplored in practical applications, particularly in semiconductor technology. The main difficulties include a lack of empirical data on the integration of PtBi2 with existing semiconductor components and the need for innovative approaches to leverage its unique properties, such as high stability and mobility, within the constraints of current electronic manufacturing processes.

May 16, 2024

1st gene-edited snakes use mysterious ‘Turing patterns’ to achieve near-perfect hexagonal scales

Posted by in categories: biotech/medical, genetics

Remember all those low rate scifi horror movies with big snakes, let’s see if the bookie will take bet on when we have a first big one (on the run from the facility)

Scientists used CRISPR editing to make the world’s first genetically modified snakes, giving new insight into how the reptiles develop their patterned scales.

May 16, 2024

Astronomers say we may live at the center of a cosmic void 2 billion light-years wide that defies the laws of cosmology

Posted by in category: cosmology

If this gigantic cosmic void does exist, it could help astronomers solve one of the greatest mysteries of our universe.

May 16, 2024

A longevity businessman says he gained 10 pounds of muscle in 1 year with a simple protein equation

Posted by in categories: business, information science, life extension, Peter Diamandis

Longevity businessman Peter Diamandis said he prioritized his body composition over everything else last year.

May 16, 2024

Physiological Integration of Taste and Metabolism

Posted by in category: neuroscience

Since taste receptor cells (TRCs) undergo rapid turnover, maintaining neurosensory integrity (i.e., sweet taste receptors signaling to “sweet” neurons) is essential (Fig. 2, shown here). The labeled-line model of taste transmission connects taste reception and signal integration in the brain.

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