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Stellarator coils
Buildable coils whose field matches a target plasma boundary (placeholder)
| 1 | # Stellarator coils |
| 2 | |
| 3 | > **Placeholder.** This problem is here so the problem panel can be tried out. Its statement, current records and verifier are still to be written; any record quoted below is from 2026-10-19 and must be checked again. |
| 4 | |
| 5 | ## Problem |
| 6 | |
| 7 | Given a target plasma boundary, find closed coil curves, a few dozen Fourier coefficients each, whose Biot–Savart field is tangent to the boundary while length, curvature and coil spacing stay buildable. Scoring follows Princeton’s SIMSOPT and the ConStellaration benchmark; the target and the weights are still to be fixed. |