[Causality1]

To my knowledge an alcubierre effect requires negative energy. If someone's invented something that behaves like negative energy why isn't that the headline? Warp drive is cool but it's a second-order consequence of what would be a physics revolution greater than relativity.

[eightysixfour]

The Casimir effect is already a known way of creating (locally) negative energy. See here: https://en.wikipedia.org/wiki/Negative_energy#Casimir_effect

[magicalhippo]

I was under the impression the paper by Jaffe[1] showed the negative energy explanation[2] was not physical, but totally not my field.

[1]: https://arxiv.org/abs/hep-th/0503158v1

[2]: https://en.wikipedia.org/wiki/Casimir_effect#Relativistic_va...

[findalex]

This is what makes me think the warp drive is a no go here. The interactions between these surfaces are already described by QM without needing to appeal to negative energy.

[gizmo686]

The casimir effect is established physics that leads to negative energy densities on small scales