Color Center MOC

Curated map of Zoo entries in the Color Center family.

Entries

Entry	Type	Status
nv-center-qubit	qubit	demonstrated

Composition

• qubit: 1

Conceptual anchors

• divincenzo-criteria is still the right scorecard here, but the non-obvious point is that NV centers reach the communication criteria without giving up the defect-spin story of optical pumping, microwave control, and nearby nuclear-memory registers.
• coherence-time-hierarchy matters because NV is best understood as a layered register: fast electron-spin control on top of much longer-lived nearby nuclear-spin memory.

Curated synthesis

This family should stay the defect-spin anchor, not a catch-all bucket for every solid-state spin-photon platform.

1. nv-center-qubit is the historical and systems baseline

   • The core package is unusual: room-temperature operation, ODMR-based initialization and readout, and a real path from electron-spin control to long-lived nuclear memory.
   • That makes NV the right entry point when the question is about a general-purpose defect-spin node rather than the cleanest optical emitter.

2. The main split is memory-first versus networking-first optimization

   • NV centers prioritize a usable local spin register and broad experimental maturity, even though their optical interface is spectrally messy by modern networking standards.
   • The moment the comparison becomes mostly about indistinguishable photons, zero-phonon-line fraction, nanophotonic cavity integration, or telecom-fibre fit, the center of gravity has moved to spin-photon-moc.

3. Use this page to preserve the room-temperature / ODMR lineage

   • Future defect notes belong here if the defining claim is still “optically addressable solid-state spin with a useful local memory stack,” especially when room-temperature or near-room-temperature operation is part of the identity.
   • Do not absorb newer networking-specialized defects here just because they are also color centers.

Placement rule

• Keep nv-center-qubit as the anchor when the question is, “what is the most mature room-temperature defect-spin qubit with a real networking story?”
• Route to spin-photon-moc when optical indistinguishability, high zero-phonon-line fraction, or telecom-native interconnects matter more than room-temperature usability.
• Read both MOCs together when Charlie is comparing defect-spin memory quality against network-emitter quality rather than looking for a single winner.