Classical Hardware MOC

Curated map of Zoo entries in the Classical Hardware family.

Entries

Entry	Type	Status
cryogenic-amplification	infrastructure	demonstrated
qubit-readout	readout	demonstrated

Composition

• infrastructure: 1
• readout: 1

Conceptual anchors

• dispersive-readout-mechanism is the measurement-side mechanism note for the dominant superconducting stack in this family: qubit-readout is where state information first becomes classical, and cryogenic-amplification determines whether that weak signal survives the trip out of the fridge.
• divincenzo-criteria is the systems-level reason this family belongs in the Zoo at all, because qubit-specific measurement is one of the core platform requirements rather than an optional accessory.
• threshold-theorem is the downstream filter: readout hardware only matters insofar as it keeps repeated syndrome extraction and feedback below the logical error budget.

Family structure

• qubit-readout is the measurement primitive and should stay platform-comparative: it explains how different qubit families turn quantum state into a discriminable classical signal.
• cryogenic-amplification is the enabling hardware stack for the superconducting branch in particular, where the first added noise in the microwave chain strongly sets practical readout fidelity.
• This family should read as an enabling classical interface layer, not as a standalone qubit modality. Keep qubit-physics details in the platform notes and use this page to map where control electronics, measurement physics, and signal-chain constraints touch the quantum stack.

Editorial note

This is a boundary family between quantum hardware and the classical control plane. Keep the curated section focused on architectural role and measurement bottlenecks, not on exhaustive electronics taxonomy.