Physicists create ‘quantum wire’ where mass and energy flow without friction or loss

When quantum gases refuse to follow the rules
The Atom Chip with the atoms trapped and levitated below. Credit: TU Wien

In physical systems, transport takes many forms, such as electric current through a wire, heat through metal, or even water through a pipe. Each of these flows can be described by how easily the underlying quantity—charge, energy, or mass—moves through a material.

Normally, collisions and friction lead to resistance causing these flows to slow down or fade away. But in a new experiment at TU Wien, scientists have observed a system where that doesn’t happen at all.

By confining thousands of rubidium atoms to move along a single line using magnetic and optical fields, they created an ultracold quantum gas in which energy and mass move with perfect efficiency...

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JWST spots a strange red dot so extreme scientists can’t explain it

The discovery of strange, ultra-red objects—especially the extreme case known as The Cliff—has pushed astronomers to propose an entirely new type of cosmic structure: black hole stars. These exotic hybrids could explain rapid black hole growth in the early universe, but their existence remains unproven.

In the summer of 2022, only a few weeks after the James Webb Space Telescope (JWST) began delivering its first scientific images, astronomers noticed an unexpected pattern: tiny red points scattered throughout the new observations. These extremely compact, distinctly red objects appeared with remarkable clarity thanks to JWST’s sensitivity, and there were far more of them than expected...

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The ‘Miracle Mineral Solution’—amazing cure or toxic illusion?

MMS – miracle cure or toxic illusion?

Miracle Mineral Solution, also known as MMS, has been marketed for years as a purported miracle cure for various conditions, including cancer, autism, and COVID-19. MMS is the marketing name for sodium chlorite (NaClOâ‚‚), a powerful disinfectant used, among other things, for water treatment. When sodium chlorite is acidified, chlorine dioxide (ClOâ‚‚) is formed. Its consumption can be hazardous to health.

A team of scientists from Wroclaw Medical University decided to investigate this.

In a study published in Scientific Reports, they analyzed the effects of acidified sodium chlorite (ASC), from which ClOâ‚‚ is produced.

Study methods and findings
Two versions of the preparation were tested—ASC1 (acidified with hydrochloric acid) and ASC2 (with gluconic acid)—on various strain...

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Quantum sensor based on silicon carbide qubits operates at room temperature

A quantum sensor based on silicon carbide qubits that operates at room temperature
Illustration of quantum sensing of Gadolinium-complex (an MRI contrast material) by divacancy-related quantum sensor engineered close to the surface of silicon carbide (SiC) with innovative surface termination (carbon chain). Credit: Pei Li et al.

Over the past decades, physicists and quantum engineers introduced a wide range of systems that perform desired functions leveraging quantum mechanical effects. These include so-called quantum sensors, devices that rely on qubits (i.e., units of quantum information) to detect weak magnetic or electric fields.

Researchers at the HUN-REN Wigner Research Center for Physics, the Beijing Computational Science Research Center, the University of Science and Technology of China and other institutes recently introduced a new quantum sensing platfor...

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