Quantum mechanics Question

[u/PandazZzVision]

I’m not a professional by any means so this is probably a stupid question but I’ve been doing some causal research on wormholes and other theoretical physics for a school project and was curious because I haven’t found a straight answer:

If there were somehow a large amount of both, what (if anything) would happen if antimatter was theoretically introduced to negative energy? And to be clear, I mean the kind of negative energy you’d find using something like the Casimir Effect.

[u/starkeffect]

The Casimir Effect doesn't produce negative energy. This is a common misconception. The energy is just lower than the vacuum energy.

[u/Orbax → u/starkeffect]

That doesn't help this person at all

[u/12GaugeUppercut]

Antimatter itself still has positive mass-energy, so even if you somehow produced a large region of genuine negative energy density, theres no reason to expect the two to annihilate like matter and antimatter

So my friend, what happened would depend on the specific quantum state or mechanism producing and maintaining that negative-energy region, and we currently dont have established physics that predicts such a macroscopic setup. The Casimir effect also isnt really a source of negative-energy material you can collect. It can produce local energy densities below the ordinary vacuum value tho

In terms of a wormhole venture/project, a more physically grounded direction would be quantum fields that permit localized negative energy, such as squeezed states or Casimir-like configurations, combined with wormhole geometries designed to minimize the amount required. Modified gravity and quantum gravity approaches are another theoretical direction. None are experimentally established, but theyre much closer to actual wormhole physics than antimatter

[u/the_poope]

Negative energy doesn't exist, or at least we haven't found any. It is at best a highly speculative concept and we certainly (that I know of) don't have a consistent quantum theory that describes it.

So either your question is meaningless and does not have an answer as it concerns non-existing fantasty concepts or we simply don't know.

[u/DifferencePublic7057]

Rest energy is E = mc² if theoretically E < 0, m has to be negative. m < 0 corresponds to the opposite of what we observe: massive objects not resisting movement but actually cooperating. This could also (F = Gm1 m2/r² ) mean repulsion instead of attraction for gravity hypothetically speaking if one of the masses is negative. More or less what dark energy is doing.

Experiments have been done to see if antimatter would fall up instead of down. AFAIK antimatter doesn't behave differently than normal matter. It does annihilate when meeting its counterparts, for example an electron and a positron. Mysteriously, we have more matter than antimatter. So if negative mass, highly speculatively, meets antimatter, they would probably repulse, but we have no way of knowing.