bibliolater, to science
@bibliolater@qoto.org avatar

"A radical theory that consistently unifies gravity and quantum mechanics while preserving Einstein’s classical concept of spacetime is announced today in two papers published simultaneously by UCL physicists." https://www.ucl.ac.uk/news/2023/dec/new-theory-seeks-unite-einsteins-gravity-quantum-mechanics @physics @science

bibliolater, to science
@bibliolater@qoto.org avatar

"We consider two interacting systems when one is treated classically while the other system remains quantum. Consistent dynamics of this coupling has been shown to exist, and explored in the context of treating space-time classically. Here, we prove that any such hybrid dynamics necessarily results in decoherence of the quantum system, and a breakdown in predictability in the classical phase space."

Oppenheim, J., Sparaciari, C., Šoda, B. et al. Gravitationally induced decoherence vs space-time diffusion: testing the quantum nature of gravity. Nat Commun 14, 7910 (2023). https://doi.org/10.1038/s41467-023-43348-2 @physics @science

bibliolater, to science
@bibliolater@qoto.org avatar

"But a new theory, developed by Professor Jonathan Oppenheim (UCL Physics & Astronomy) and laid out in a new paper in Physical Review X (PRX), challenges that consensus and takes an alternative approach by suggesting that spacetime may be classical – that is, not governed by quantum theory at all.

Instead of modifying spacetime, the theory – dubbed a “postquantum theory of classical gravity” – modifies quantum theory and predicts an intrinsic breakdown in predictability that is mediated by spacetime itself. This results in random and violent fluctuations in spacetime that are larger than envisaged under quantum theory, rendering the apparent weight of objects unpredictable if measured precisely enough." https://www.ucl.ac.uk/news/2023/dec/new-theory-seeks-unite-einsteins-gravity-quantum-mechanics @physics @science

bibliolater, to science
@bibliolater@qoto.org avatar

"But a new theory, developed by Professor Jonathan Oppenheim (UCL Physics & Astronomy) and laid out in a new paper in Physical Review X (PRX), challenges that consensus and takes an alternative approach by suggesting that spacetime may be classical – that is, not governed by quantum theory at all.
Instead of modifying spacetime, the theory – dubbed a “postquantum theory of classical gravity” – modifies quantum theory and predicts an intrinsic breakdown in predictability that is mediated by spacetime itself. This results in random and violent fluctuations in spacetime that are larger than envisaged under quantum theory, rendering the apparent weight of objects unpredictable if measured precisely enough." https://www.ucl.ac.uk/news/2023/dec/new-theory-seeks-unite-einsteins-gravity-quantum-mechanics @physics @science

appassionato, to bookstodon
@appassionato@mastodon.social avatar

Schrödinger’s Cat Smile

Algorithms for Construction of Reality in Physics

The book presents a multidisciplinary analysis of the context of quantum physics experiments and the function of the human mind that makes it possible to demonstrate that an object-based model of reality formed at the level of the unconscious is the basis of our worldview.

@bookstodon


thezerobit, to random
@thezerobit@anticapitalist.party avatar

Youtube is full of breathless "science" reporting videos that are full of mostly nonsense, especially when anything remotely related to quantum physics is involved. They give questionable and misleading (if not outright fallacious) descriptions of physics and then uncritically accept the findings and most sensational interpretations of freshly published research papers that haven't been fully vetted or even reproduced by the greater science community.

seb_tmg, to consciousliving
@seb_tmg@mastodon.cosmicnation.co avatar

And the fun continues! Day 2 of the Physics behind the Nature of Reality seminar.

@consciousliving

seb_tmg, to consciousliving
@seb_tmg@mastodon.cosmicnation.co avatar

Such a good seminar. Zero Point Energy is such an interesting subject.

@consciousliving

bibliolater, to science
@bibliolater@qoto.org avatar

"Thanks to a complex mathematical algorithm, these plastic shapes follow a very specific route as they roll. In fact, researchers have shown that a shape can be designed to follow almost any path you can think of." https://youtu.be/2lW9HznqsVY @science

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