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The unphysical nature of "Warp Drive"

3 Pith papers cite this work. Polarity classification is still indexing.

3 Pith papers citing it
abstract

We will apply the quantum inequality type restrictions to Alcubierre's warp drive metric on a scale in which a local region of spacetime can be considered ``flat''. These are inequalities that restrict the magnitude and extent of the negative energy which is needed to form the warp drive metric. From this we are able to place limits on the parameters of the ``Warp Bubble''. It will be shown that the bubble wall thickness is on the order of only a few hundred Planck lengths. Then we will show that the total integrated energy density needed to maintain the warp metric with such thin walls is physically unattainable.

fields

gr-qc 3

years

2026 3

representative citing papers

Steering a warp drive without exotic matter

gr-qc · 2026-06-21 · conditional · novelty 6.0 · 2 refs

An accelerating positive-energy warp drive is constructed by matching a flat cavity to a Kinnersley photon rocket, obeying the derived control law −ṁ ≥ 3m|a| and needing no exotic matter.

citing papers explorer

Showing 3 of 3 citing papers.

  • Observer-robust energy condition verification for warp drive spacetimes gr-qc · 2026-02-20 · accept · none · ref 41 · internal anchor

    Warpax toolkit demonstrates that observer-robust optimization finds more extensive and severe energy-condition violations in warp drive metrics than single-frame Eulerian analysis.

  • Steering a warp drive without exotic matter gr-qc · 2026-06-21 · conditional · none · ref 4 · 2 links · internal anchor

    An accelerating positive-energy warp drive is constructed by matching a flat cavity to a Kinnersley photon rocket, obeying the derived control law −ṁ ≥ 3m|a| and needing no exotic matter.

  • On the boundary cost of source-consistent warp shells gr-qc · 2026-05-25 · unverdicted · none · ref 5 · internal anchor

    Source-consistent warp shells fail energy conditions at the source-vacuum boundary in all examined constructions and parameter scans.