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The law behind itTime as order. σ, λ, and why λ ≤ σ decides what a machine can carry.
The edgeRatio over depth on a real machine. Slide the depth, read the regime.
How ROX OS decidesREAD, PREDICT, OUTPERFORM, PROVE. The seal. The recommendation, also against us.
Reading a TafelFour lines, every number from a file in the ledger.
QubitA two-level system, read in a basis.
SuperpositionAmplitudes, not probabilities, until you measure.
EntanglementCorrelations that no local story explains.
CircuitGates in order, two-qubit gates counted.
Shots and standard errorHow many shots buy how much certainty. Interactive.
QAOACost and mixer, depth p, the ratio against the coin flip.
VQEAn ansatz, a Hamiltonian, an exact reference where it exists.
Why noise wins at depthEvery gate adds load. Past the edge, the default returns the coin flip.

rox os

Qubit

A qubit is a two-level quantum system. Read in the computational basis it gives 0 or 1; before the read it is a state — two complex amplitudes whose squared magnitudes add to one.

On the machines ROX OS runs, a qubit is a superconducting circuit (IBM Heron, IQM Garnet and Emerald). Each has a lifetime T1 and a coherence time T2; each two-qubit gate carries an error that today's calibration reports per coupler. ROX OS reads those numbers before it plans.

What matters for a run: how many qubits the workload needs, and which physical qubits carry them. The loop is chosen from today's calibration, not from a diagram.

Sources: the product register, the design guide, the whitepaper. Every number links its record.Privacy Terms