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Atomic Physics operators

11 operators in the atomic_physics category of the live registry. Each is a named formula you can compose inside a state contract or call directly through POST /api/zeq/compute. KO42 is always on; add up to three more per call (total ≤ 4), per the 7-step protocol.

OperatorDescriptionEquation
XION_1Ionization rate operator: electron density times ionization cross-section for atomic transitions.X_{ion}^{(1)} = n_e \cdot \sigma_{ion}
XION_10Tenth ionization operator for charge exchange cross-section modeling.X_{ion}^{(10)} = n_e \cdot \sigma_{ion}
XION_11Eleventh ionization operator for inner-shell ionization threshold analysis.X_{ion}^{(11)} = n_e \cdot \sigma_{ion}
XION_2Second ionization operator for doubly-ionized species cross-section computation.X_{ion}^{(2)} = n_e \cdot \sigma_{ion}
XION_3Third ionization operator for multiply-charged ion production rates.X_{ion}^{(3)} = n_e \cdot \sigma_{ion}
XION_4Fourth ionization operator for high-Z element ionization equilibrium.X_{ion}^{(4)} = n_e \cdot \sigma_{ion}
XION_5Fifth ionization operator for plasma charge state distribution modeling.X_{ion}^{(5)} = n_e \cdot \sigma_{ion}
XION_6Sixth ionization operator for collisional ionization rate coefficients.X_{ion}^{(6)} = n_e \cdot \sigma_{ion}
XION_7Seventh ionization operator for photoionization cross-section computation.X_{ion}^{(7)} = n_e \cdot \sigma_{ion}
XION_8Eighth ionization operator for autoionization resonance analysis.X_{ion}^{(8)} = n_e \cdot \sigma_{ion}
XION_9Ninth ionization operator for dielectronic recombination rate computation.X_{ion}^{(9)} = n_e \cdot \sigma_{ion}

Compute with one of these​

curl -sS -X POST https://zeqsdk.com/api/zeq/compute \
  -H "Authorization: Bearer $ZEQ_KEY" \
  -H "Content-Type: application/json" \
  -d '{"operators":["XION_1"],"inputs":{}}'

The response carries the bare physics value, its unit and uncertainty, the generated master equation, and a signed envelope you can verify on any node.

See also​