Quantum Computing operators
7 operators in the quantum_computing category of the live registry. Compose them in a contract or call POST /api/zeq/compute — KO42 is always on, plus up to three more per call.
How it computes: dedicated closed-form solver solveQR — real equations over CODATA-2018 constants; where an operator needs a series/matrix/field a scalar cannot express, it refuses honestly. See the solvers.
| Operator | Description | Equation |
|---|---|---|
ENTANGLEMENT_ENTROPY | Entanglement entropy S = -Tr(rho * log(rho)) quantifying quantum entanglement via the von Neumann entropy of the reduced density matrix. | S = -Tr(\rho \log \rho) |
GROVER_SEARCH | Grover's quantum search algorithm finding a marked item in O(sqrt(N)) queries, quadratic speedup over classical search. | O(\sqrt{N}) |
QUANTUM_SIM | Quantum simulation state |psi> = sum(c_i|i>) representing a quantum system as a superposition of computational basis states. | |\psi\rangle = \sum_i c_i |i\rangle |
QUBIT_DECOHERENCE | Qubit decoherence |psi(t)> = e^(-t/T2)*|psi(0)> modeling exponential loss of quantum coherence over time. | |\psi(t)\rangle = e^{-t/T_2}|\psi(0)\rangle |
QUBIT_FIDELITY | Qubit state fidelity F = |<psi|phi>|^2 measuring the overlap between an ideal and actual quantum state. | F = |\langle\psi|\phi\rangle|^2 |
QUBIT_GATE | Quantum gate operation |psi'> = U|psi> applying a unitary matrix U to transform a qubit state. | |\psi\'\rangle = U|\psi\rangle |
SHOR_FACTOR | Shor's factoring algorithm decomposing an integer N in O((log N)^3) time using quantum Fourier transform. | O((\log N)^3) |
Compute one — a real call
Ask the operator which inputs it needs (the honesty contract refuses empty inputs rather than inventing them):
curl -sS -X POST https://zeqsdk.com/api/zeq/operator-spec \
-H "Content-Type: application/json" \
-d '{"operator":"ENTANGLEMENT_ENTROPY"}'
See also
- The solvers — the coverage map and the ODE fallback
- The honesty contract — compute, ask, or refuse
- All operator categories