PSA videos and other excitement

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I thought this was an interesting take on quantum physics.  

[tailpa]

 

[Rowan Amore]

 

[Quistess Alpha]

It's official, time travel is totally real!

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Physicists Glimpse Signs of 'Triangle Singularity' in Unexpected First

PAUL SUTTER, LIVE SCIENCE

9 SEPTEMBER 2021

In 2015, physicists studying particle collisions at CERN in Switzerland thought that they had caught a brief glimpse of a short-lived exotic collection of particles known as a tetraquark. But the new research favors a different interpretation – something even weirder.

First envisioned by Russian physicist Lev Landau in the 1950s, a triangle singularity refers to a rare subatomic process where particles exchange identities before flying away from each other.

In this scenario, two particles – called kaons – form two corners of the triangle, while the particles they swap form the third point on the triangle. 

 

"The particles involved exchanged quarks and changed their identities in the process," study co-author Bernhard Ketzer, of the Helmholtz Institute for Radiation and Nuclear Physics at the University of Bonn, said in a statement.  

 

It's called a singularity because the mathematical methods for describing subatomic particle interactions break down.

If this singularly weird particle identity-swap really happened, it could help physicists understand the strong force, which binds the nucleus together.

https://www.sciencealert.com/evidence-of-a-triangle-singularity-seen-in-the-debris-of-particle-collisions

 

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... quantum computing breakthrough
By Mayank Sharma 1 day ago

Researchers at Japan’s Riken Center for Emergent Matter Science have achieved a major step forward in increasing the scalability of quantum computers.  The researchers have demonstrated a triple-qubit, silicon-based quantum computing mechanism.

Qubits, the quantum equivalent of the traditional computing bits, were previously only shown to work in entangled pairs. The new researcher however demonstrates that entanglement can actually be done with three qubits.

“Two-qubit operation is good enough to perform fundamental logical calculations. But a three-qubit system is the minimum unit for scaling up and implementing error correction,” notes Seigo Tarucha, who led the team of Riken researchers.

(from https://www.techradar.com/news/theres-been-another-major-quantum-computing-breakthrough )

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New superconducting magnet breaks magnetic field strength records
SEPTEMBER 8, 2021
by David Chandler, Massachusetts Institute of Technology

It was a moment three years in the making, based on intensive research and design work: On Sept. 5, for the first time, a large high-temperature superconducting electromagnet was ramped up to a field strength of 20 tesla, the most powerful magnetic field of its kind ever created on Earth. That successful demonstration helps resolve the greatest uncertainty in the quest to build the world's first fusion power plant that can produce more power than it consumes, according to the project's leaders at MIT and startup company Commonwealth Fusion Systems (CFS).

Developing the new magnet is seen as the greatest technological hurdle to making that happen; its successful operation now opens the door to demonstrating fusion in a lab on Earth, which has been pursued for decades with limited progress. With the magnet technology now successfully demonstrated, the MIT-CFS collaboration is on track to build the world's first fusion device that can create and confine a plasma that produces more energy than it consumes. 

(from  https://phys.org/news/2021-09-superconducting-magnet-magnetic-field-strength.html )

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Edited September 10, 2021 by tailpa
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