Tick 38 — 2026-05-22 11:20 UTC

Thread: Quantum-sensing series doc 17 (honest classical-quantum fusion) Verdict: Bridges the existing 6-doc quantum-sensing series (docs 11-16) with this loop's 37+ ticks. Inherits doc 16's sober "no 40-mile cardiac magnetometry" posture.

What shipped

docs/research/quantum-sensing/17-honest-classical-quantum-fusion.md — synthesis document in the quantum-sensing series.

Why this tick (user signal)

User opened docs/research/quantum-sensing/11-quantum-level-sensors.md twice in consecutive ticks. Strong repeat signal toward quantum integration. Inspecting the folder revealed a 6-doc series (11-16) that R20 (tick 37) didn't yet acknowledge. Doc 17 explicitly bridges the two work streams.

The two reality-checks composing

R13 NEGATIVE (loop tick 11): ruled out classical CSI BP/HRV-contour due to 5 dB shortfall
Doc 16 Ghost Murmur (2026-04-26): ruled out 40-mile NV cardiac magnetometry due to cube-of-distance physics

Combined: honest fusion adds NV-diamond cardiac magnetometry at 1-2 m bedside ranges (where cube law gives ~1 pT/√Hz SNR), NOT 40 miles. The loop's classical primitives carry geometry; quantum carries fidelity.

Five-cog fusion roadmap

Cog	Series-anchor doc	Loop primitives	Timeline
cog-quantum-vitals (NV + CSI)	docs 13/14/15 (nvsim)	R14 V1 + R15 + NV HRV contour	5y
cog-rydberg-anchor (calibrated multistatic)	doc 11.4	R1 + R6.2.2 + Rydberg	7-10y
cog-mm-position (atomic clock)	doc 11	R1 + R3.2 + atomic clock	10y
cog-deep-rubble-survivor (NV drone)	docs 13, 16	R18 + NV-via-drone	15y
cog-ICU-meg (room-temp SQUID)	doc 11.2.2	R14 V3 + SQUID array	20y

Cross-reference index

Every loop output mapped to a quantum-series doc:

R13 NEGATIVE → doc 13 recovers HRV via NV
R14 V3 → doc 13 + doc 11.2.2 SQUID for MEG
R6.1 4.7 dB penalty → doc 11.3.3 quantum illumination (+6 dB)
R1 CRLB → doc 11.4 Rydberg+atomic clock (~10 cm)
R18 disaster → doc 13 NV cardiac at 5+ m rubble depth

Lets a reader navigate: "I'm interested in X loop finding; here's the quantum context that extends it."

nvsim (ADR-089) integration concretised

Doc 17 specifies the code path from nvsim (currently a standalone leaf crate, WASM-ready) into production via the loop's primitives:

nvsim_output -> R14 V1 fusion / R12 PABS / R7 mincut / R6.1 residual basis
                                                       ↓
                                                cog-quantum-vitals

~150 LOC of glue. This makes nvsim actually useful beyond simulator scope.

What this DOES enable

Clear integration between existing 6-doc series and SOTA loop
Five honest-scope fusion-cog roadmap items
"What we are NOT building" list (no 40-mile cardiac, no through-walls quantum)
Bridge for journalists / researchers / contributors

What this DOES NOT enable

40-mile cardiac magnetometry (doc 16 stands)
Through-multiple-walls quantum (1/r³ falloff persists)
Replacement of medical devices without FDA/CE approval
Quantum-enhanced WiFi protocol changes (Layer 1 stays classical)

Composes with every loop output

R1, R3, R5-R15, R12.1, R13 NEGATIVE (recovered via NV), R14 V1/V3, R15, R16-R20 verticals, ADR-105-109, ADR-113. Plus all 6 quantum-sensing docs (11-16).

Doc 17 special status

First doc to bridge the SOTA loop (2026-05-22) with the quantum-sensing series (2026-03-08 onwards)
Adopts doc 16's sober reality-check posture
Identifies which loop NEGATIVE results are conditionally recoverable via quantum (R13)
Concretises the nvsim → cog integration path

Coordination

ticks/tick-38.md. No PROGRESS.md edit. Branch research/sota-quantum-doc17-fusion.

Loop status (38 ticks, ~40 minutes to cron stop)

18 research threads (R1, R3, R5-R15, R16-R20)
8 exotic verticals + this cross-series synthesis
6 loop ADRs + 3 existing + 3 referenced from quantum series
3 negative result categories (R13 conditionally recovered via R20+doc 17)
Production roadmap + quantum-classical fusion roadmap both shipped

00-summary.md to follow at 12:00 UTC stop.