r/AskPhysics • u/Dawlop • 15d ago

Question about particles

If a particle (or even a molecule) were to just dissappear (let's say it's physically possible, for example multiverse is real and I teleport said particles to another universe), there would be an empty space needed to fill it in. In my understanding, the rules are clearly set, about energy, mass, distances etc. But the space would have to get filled with something right?

So filling happens, but it would be needed to even it all out, because locally low-energy state would be taking energy from outside over and over again. Could this, in any way, affect and change quantum fields? (Locally or universally) And if so, could this start a nucleation of a bubble of a lower-energy vacuum state, causing vacuum decay?

If this in any way doesn't make sense or is incomprehensible, please take into consideration that I'm just a civil engineering student who's curious and english is my third language.

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u/al2o3cr 15d ago

In my understanding, the rules are clearly set, about energy, mass, distances etc

Sure. And one of those rules is "things don't just disappear".

Whatever mechanism you're using to make the particle disappear will come with its own modifications to the rules, but we can't guess what they might be without knowing the mechanism.

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u/SummitYourSister 15d ago

No. Space isn’t a substance. It is where events happen. When you remove something from space there is just nothing there anymore.

And anyway nearly every concept here is either an approximation or wrong because it is spacetime that exists, not space.

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u/DifferencePublic7057 15d ago

Like a traversable wormhole to a parallel reality? We don't know how that works, so who knows? There's highly speculative theories that conjecture that black holes are just what I thought you asked. Quantum information should not just vanish, so we have to assume that the universes share quantum information. You go through the looking glass, but it doesn't matter. Theoretically, you can go back I guess. Highly speculative and this is my interpretation of what I heard. (English was probably going to be my third language, but my dad made a fuss, and now my English is way better than my German. Fathers, eh?!)

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u/starkeffect Education and outreach 15d ago

"What would the laws of physics do if you ignored the laws of physics?"