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Archive for the ‘particle physics’ category: Page 96

Feb 26, 2024

Strange Phase of Matter That Only Existed in Theory Turns Out to Be Real

Posted by in categories: materials, particle physics

A strange phase of matter that previously existed purely in the realm of theory has finally been detected in a real material.

It’s known as the Bragg glass phase – a strange, seemingly paradoxical arrangement of atoms in a glass material where the particles are nearly as ordered as those in a perfect crystal. Scientists weren’t even sure Bragg glass existed, but there it was, hiding in an alloy of palladium inserted between layers of terbium and tellurium (PdxErTe3).

The discovery, led by physicist Krishnanand Mallayya of Cornell University and published in Nature Physics, not only sheds light on the way materials can behave but demonstrates a powerful new set of techniques for probing the atomic structures of exotic materials.

Feb 26, 2024

Quantum Computing Breakthrough: New Fusion of Materials Has All the Components Required for a Unique Type of Superconductivity

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

A new fusion of materials, each with special electrical properties, has all the components required for a unique type of superconductivity that could provide the basis for more robust quantum computing. The new combination of materials, created by a team led by researchers at Penn State, could also provide a platform to explore physical behaviors similar to those of mysterious, theoretical particles known as chiral Majoranas, which could be another promising component for quantum computing.

The new study was recently published in the journal Science. The work describes how the researchers combined the two magnetic materials in what they called a critical step toward realizing the emergent interfacial superconductivity, which they are currently working toward.

Feb 26, 2024

Study reveals Eco-friendly way to Generate Power from Waste Wood

Posted by in categories: particle physics, sustainability

A new study by researchers at University of Limerick in Ireland has revealed a sustainable method of efficiently converting waste heat into electricity using Irish wood products, while minimizing costs and environmental impact.

The study, led by researchers at UL in collaboration with colleagues at the University of Valencia, has demonstrated a method of generating electricity using low-grade heat recovered from lignin-derived membranes.

Lignin, typically overlooked, is a sustainable byproduct derived from wood in paper and pulp production. The study shows that these membranes can convert waste heat into electricity by utilizing the movement of charged atoms (ions) within the material.

Feb 25, 2024

Scientists use levitating magnets to understand quantum gravity

Posted by in categories: particle physics, quantum physics

Scientists have identified a subtle gravitational force acting on a minuscule particle through an innovative approach.

In the quest to unravel the mysterious forces of the universe, scientists have achieved a major feat.

Feb 25, 2024

Scientists Achieve an Incredible Feat: Freezing Water’s Electrons in Time

Posted by in category: particle physics

Here’s what it takes to pause the perpetual motion of particles.

Feb 24, 2024

Nonequilibrium solvent response force: What happens if you push a Brownian particle

Posted by in categories: information science, particle physics

Forces cannot simply be added to the Langevin equation. Momentum transfer from the Brownian particle on the solvent always produces an additional nonequilibrium solvent response force that has highly nontrivial statistical properties.

Feb 24, 2024

A new phase of matter: Physicists achieve first demonstration of non-Abelian anyons in a quantum processor

Posted by in categories: particle physics, quantum physics

Our physical, 3D world consists of just two types of particles: bosons, which include light and the famous Higgs boson; and fermions—the protons, neutrons, and electrons that comprise all the “stuff,” present company included.

Theoretical physicists like Ashvin Vishwanath, Harvard’s George Vasmer Leverett Professor of Physics, don’t like to limit themselves to just our world, though. In a 2D setting, for instance, all kinds of new particles and states of matter would become possible.

Vishwanath’s team used a powerful machine called a to make, for the first time, a brand-new phase of matter called non-Abelian topological order. Previously recognized in theory only, the team demonstrated synthesis and control of exotic particles called non-Abelian anyons, which are neither bosons nor fermions, but something in between.

Feb 23, 2024

Antimatter: Scientists freeze positronium atoms with lasers

Posted by in category: particle physics

Positronium has the potential to revolutionise physics but the elusive substance had been too hot to handle.

Feb 23, 2024

Harnessing the Power of Neutrality: Comparing Neutral-Atom Quantum Computing With Other Modalities

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

How Does The Neutral Atom Approach Compare

The neutral atom approach is a well-known and extensively investigated approach to quantum computing. The approach offers numerous advantages, especially in terms of scalability, expense, error mitigation, error correction, coherence, and simplicity.

Neutral atom quantum computing utilizes individual atoms, typically alkali atoms like rubidium or cesium, suspended and isolated in a vacuum and manipulated using precisely targeted laser beams. These atoms are not ionized, meaning they retain all their electrons and do not carry an electric charge, which distinguishes them from trapped ion approaches. The quantum states of these neutral atoms, such as their energy levels or the orientation of their spins, serve as the basis for qubits. By employing optical tweezers—focused laser beams that trap and hold the atoms in place—arrays of atoms can be arranged in customizable patterns, allowing for the encoding and manipulation of quantum information.

Feb 23, 2024

‘Quantum gravity’ could help unite quantum mechanics with general relativity at last

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

One of the primary reasons for this dilemma is that, while three of the universe’s four fundamental forces — electromagnetism, the strong nuclear force and the weak nuclear force — have quantum descriptions, there is no quantum theory of the fourth: Gravity.

Now, however, an international team has made headway in addressing this imbalance by successfully detecting a weak gravitational pull on a tiny particle using a new technique. The researchers believe this could be the first tentative step on a path that leads to a theory of “quantum gravity.”

“For a century, scientists have tried and failed to understand how gravity and quantum mechanics work together,” Tim Fuchs, team member and a scientist at the University of Southampton, said in a statement. “By understanding quantum gravity, we could solve some of the mysteries of our universe — like how it began, what happens inside black holes, or uniting all forces into one big theory.”

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