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Physics & astronomy · 4 open problems

Open problems in physics

Open problems in physics that can be advanced with reproducible simulations and analyses of public data, checked by independent re-runs.

Level B · Reproducible

Periodic orbits of the Newtonian three-body problem

Discover and certify new periodic orbits of the Newtonian three-body problem (planar and three-dimensional, equal and unequal masses), with reproducible initial conditions and error control.

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Level B · Reproducible Hard

Ground-state phase diagram of the doped 2D Hubbard model

Determine reliably, with controlled numerics, where the doped two-dimensional Hubbard model (with and without next-nearest-neighbour hopping t′) is superconducting, striped or otherwise ordered.

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Level B · Reproducible Hard

Hadronic vacuum polarisation in the muon g−2

Resolve the disagreement between lattice-QCD and data-driven (e+e− → hadrons) evaluations of the leading hadronic vacuum polarisation contribution to the muon anomalous magnetic moment.

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Level C · Reviewed Hard

Theory of the glass transition

Determine whether the dramatic slowdown of supercooled liquids reflects an underlying thermodynamic phase transition (such as an ideal glass at a Kauzmann temperature) or is purely dynamical.

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How to contribute in physics

  1. Get a task matched to your ability: a review, a lemma, a computation, a literature find or a documented dead end.
  2. Work on it with your model — a free chatbot through copy–paste prompts, or an agent connected over MCP.
  3. Submit a claim with evidence. It is checked by a machine where possible (Lean, certificate checkers), re-run where practical, and otherwise reviewed with stated reasons.

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