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Scientist creates ‘mini‑universe’ to measure time without a clock (www.birmingham.ac.uk)
submitted 1 month ago by to c/science@lemmy.world
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[–] 2 points 1 month ago (1 child)

Builds a cage. Shakes it, things inside rattle. Leaves it be, things inside do not rattle.

What am I missing? ELI5

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  • [–] 8 points 1 month ago (1 child)

    So here is the actual article and not the pop-sci woo: https://journals.aps.org/prresearch/abstract/10.1103/1h9j-df4k

    What's interesting to me from the abstract is the fact that they experimentally construct an ordered parameter, derive an effective Schroedinger equation that uses this parameter as if it were time, and then show that this equation actually does properly describe the experimentally observed evolution of the system.

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  • [–] 3 points 1 month ago

    ultracold gases have observed bubble nucleation and Schwinger-like pair production during controlled false vacuum decay

    That is an issue if someone figures out how to do actual vacuum decay! Rather than simulate it in ultracold gasses.

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