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Companion to JPCUB P0, this paper computes JPCUB estimates in 17 quantum computing platforms, implying performance insights for computing efficiency.
Companion paper to JPCUB P0 (DOI 10.5281/zenodo.21637028). Computes joules-per-solution (JPCUB) estimates for 17 quantum computing platforms from published specifications: 13 gate-model (7 superconducting, 4 trapped-ion, 2 neutral-atom) plus 2 annealing, 1 photonic, and 1 pre-commercial target. Key finding: gate speed dominates joules-per-solution. Superconducting platforms (0.05-0.71 J/sol) lead via 30-500 ns gates; neutral atoms (0.32-0.62 J/sol) balance Rydberg-gate speed with room-temperature operation; trapped ions (8.5-16.3 J/sol) rank last because 50-100 us gate times overwhelm the room-temperature power advantage. Only IBM Eagle has a published JPCUB (0.89 J/sol, P0). All other values are conservative system-level upper bounds pending independent measurement per JPCUB P0 adversarial validation provisions. Includes reproducible computation script and full specification-source traceability.
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Rowan Brad Quni-Gudzinas (2026) studied this question.
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