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Aug 30, 2024

Researchers create entangled quantum magnets with protected quantum excitations

Posted by in categories: particle physics, quantum physics

Quantum magnets are materials that realize a quantum superposition of magnetic states, bringing quantum phenomena from the microscopic to the macroscopic scale. These materials feature exotic quantum excitations–including fractional excitations where electrons behave as if they were split into many parts–that do not exist anywhere outside of this material.

To manipulate how the atoms behaved inside the quantum material the researchers had assembled, they poked each individual atom with a tiny needle. This technique allows for the accurate probing of qubits at the atomic level. The needle, in reality an atomically sharp metal tip, served to excite the atoms’ local magnetic moment, which resulted in topological excitations with enhanced coherence.

“Topological quantum excitations, such as those realized in the topological quantum magnet we now built, can feature substantial protection against decoherence. Ultimately, the protection offered by these exotic excitations can help us overcome some of the most pressing challenges of currently available qubits,” Lado says.

Aug 30, 2024

New Sisyphus cooling technique could enhance precision of atomic clocks

Posted by in category: particle physics

Researchers in the Neutral Atom Optical Clocks Group at the National Institute of Standards and Technology (NIST), University of Colorado and Pennsylvania State University recently devised a new sub-recoil Sisyphus cooling technique that could help to improve the precision of atomic clocks.

Aug 30, 2024

Using atomic excitations to measure the rotation of spacetime

Posted by in categories: cosmology, particle physics

How would atoms behave near a supermassive object? We know how atoms behave in extremely weak gravity like that at the Earth’s surface: They can be excited from a lower energy level to a higher one when an electron absorbs a photon or a nucleus absorbs a gamma ray, and so on. But what if the atom is in a strong gravitational field such as one near a supermassive, rotating black hole or rotating neutron star?

Aug 30, 2024

Scientists unlock the secrets of how a key protein converts DNA into RNA

Posted by in category: biotech/medical

Researchers at the Department of Energy’s SLAC National Accelerator Laboratory have uncovered new insights into the fundamental mechanisms of RNA polymerase II (Pol II), the protein responsible for transcribing DNA into RNA. Their study shows how the protein adds nucleotides to the growing RNA chain. The results, published in Proceedings of the National Academy of Sciences, have potential applications in drug development.

Aug 30, 2024

Novel encoding mechanism unveiled for particle physics

Posted by in categories: particle physics, quantum physics

In the development of particle physics, researchers have introduced an innovative particle encoding mechanism that promises to improve how information in particle physics is digitally registered and analyzed. This new method, focusing on the quantum properties of constituent quarks, offers unprecedented scalability and precision. It paves the way for significant advancements in high-energy experiments and simulations.

Aug 30, 2024

Physics researchers identify new multiple Majorana zero modes in superconducting SnTe

Posted by in category: physics

A collaborative research team has identified the world’s first multiple Majorana zero modes (MZMs) in a single vortex of the superconducting topological crystalline insulator SnTe and exploited crystal symmetry to control the coupling between the MZMs.

Aug 30, 2024

Quantum Alchemy: Scientists Fuse Light and Sugar To Create New States of Matter

Posted by in categories: chemistry, quantum physics

Researchers have developed a technique to trap light within an organic material, forming a hybrid quantum state that gives rise to novel physical and chemical properties.

An international team of researchers led by the University of Ottawa has gone back to the kitchen cupboard to create a recipe that combines organic material and light to create quantum states.

Professor Jean-Michel Ménard, leader of the Ultrafast Terahertz Spectroscopy group at the Faculty of Science, coordinated with Dr. Claudiu Genes at the Max Planck Institute for the Science of Light (Germany), and with Iridian Spectral Technologies (Ottawa) to design a device which can efficiently modify properties of materials using the quantum superposition with light.

Aug 30, 2024

‘It’s insane’: Man with brain chip designs 3D objects

Posted by in categories: computing, neuroscience

Neuralink assists second person ‘control cursor with mind’

Aug 30, 2024

Astrophysicists harness AI to calculate the Universe’s ‘settings’ precisely

Posted by in categories: cosmology, physics, robotics/AI

The results were a significant improvement over the values produced by previous methods.

Aug 30, 2024

Unitree’s $16,000 Humanoid Robot Is Ready for Mass Production

Posted by in category: robotics/AI

Unitree’s humanoid robot just got a mass production upgrade. The G1 will now feature stronger performance, the “ultimate appearance,” and is now more in line with mass production requirements according to Unitree.

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