Sunday, August 4, 2024

Paradigms Afoot


AKA To Kuhn the Universe

Yes this is old news, but it's a big deal so it can't be ignored. The first article is like the basis of teleportation, where we make molecules dance from a million miles away, but instantly. The second article is about how the paradigm that's scripted science fo the past 300 hundred years or so (gravity and classical physics) is collapsing... "Shifting" if you prefer your revolutions to sound less hyperbolic. 

Physicists 'entangle' individual molecules for the first time, hastening possibilities for quantum computing
Dec 2023, phys.org

They first picked a molecular species that is both polar and can be cooled with lasers. Individual molecules were then picked up with optical tweezers. Next, they encoded a qubit into a non-rotating and rotating state of the molecule. Then they used microwave pulses to make individual molecules interact with one another. Then they implement a two-qubit gate that entangled two molecules.

via Princeton: Connor M. Holland et al, On-demand entanglement of molecules in a reconfigurable optical tweezer array, Science (2023). DOI: 10.1126/science.adf4272.

Also: Yicheng Bao et al, Dipolar spin-exchange and entanglement between molecules in an optical tweezer array, Science (2023). DOI: 10.1126/science.adf8999.

Also: Augusto Smerzi et al, Entanglement with tweezed molecules, Science (2023). DOI: 10.1126/science.adl4179.


 
Scientists closer to finding quantum gravity theory after measuring gravity on microscopic level
Feb 2024, phys.org

Scientists  have successfully detected a weak gravitational pull on a tiny particle using superconducting traps and levitating magnets to detect a weak gravitational pull of 30aN, on a tiny particle measuring 0.43mg, and at a hundredth of a degree above absolute zero.

via University of Southampton and Leiden University in the Netherlands: Tim Fuchs et al, Measuring gravity with milligram levitated masses, Science Advances (2024). DOI: 10.1126/sciadv.adk2949. 


New research suggests that our universe has no dark matter
Mar 2024, phys.org

Rajendra Gupta, a physics professor at the Faculty of Science, used a combination of the covarying coupling constants (CCC) and "tired light" (TL) theories (the CCC+TL model) to reach this conclusion.

This model combines two ideas—about how the forces of nature decrease over cosmic time and about light losing energy when it travels a long distance. It's been tested and has been shown to match up with several observations, such as about how galaxies are spread out and how light from the early universe has evolved.

This discovery challenges the prevailing understanding of the universe, which suggests that roughly 27% of it is composed of dark matter and less than 5% of ordinary matter, remaining being the dark energy.

"In standard cosmology, the accelerated expansion of the universe is said to be caused by dark energy but is in fact due to the weakening forces of nature as it expands, not due to dark energy."

via University of Ottawa: Rajendra P. Gupta, Testing CCC+TL Cosmology with Observed Baryon Acoustic Oscillation Features, The Astrophysical Journal (2024). DOI: 10.3847/1538-4357/ad1bc6


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