Eighth exotic vertical. Recovers what R13 NEGATIVE physically excluded.
Demonstrates the loop's architecture is SENSOR-AGNOSTIC — same primitives
work with classical CSI today and quantum sensors in 5-20y.
User-prompted: opened docs/research/quantum-sensing/11-quantum-level-
sensors.md indicating quantum-integration interest. Repo already has
nvsim (NV-diamond magnetometer simulator, ADR-089) as a standalone
leaf crate.
Four quantum modalities catalogued:
- NV-diamond magnetometer (1 pT/sqrt(Hz), 5-10y edge)
- Atomic clock (10^-15 stability, 5-10y edge)
- SQUID magnetometer (1 fT/sqrt(Hz), 15-20y if room-temp possible)
- Quantum-illuminated radar (+6 dB SNR, 15-20y edge)
Classical vs quantum loop primitive comparison:
- Breathing rate: +-1 BPM -> +-0.1 BPM (10x)
- HR rate: +-5 BPM -> +-0.5 BPM (10x)
- HRV contour: NOT possible (R13) -> NV-magnetometer enables it
- BP: NOT possible (R13) -> atomic-ToA PWV enables it
- Position precision: 25 cm -> 3 mm (80x)
- Multi-scatterer penalty: 4.7 dB -> 1 dB (3.7 dB recovery)
- Through-rubble: 2 m -> 5 m+ (2.5x)
WHAT R13 NEGATIVE NO LONGER RULES OUT WITH QUANTUM:
R13 ruled out HRV contour + BP from CSI due to 5 dB SNR shortfall.
NV-diamond cardiac magnetometry resolves this — heart magnetic fields
(~50 pT) detectable, contour-preserving, penetrates clothing/rubble.
The 5 dB R13 shortfall was SENSOR-BOUND, not PHYSICS-BOUND-period.
Different sensor recovers it. R20 identifies this categorisation
explicitly.
Five-cog speculative roadmap:
- cog-quantum-vitals (5y): nvsim + R14 + R15
- cog-mm-position (10y): atomic clock + R1 + R3.2
- cog-deep-rubble-survivor (15y): nvsim + R18 + drone
- cog-quantum-illuminated-pose (15y): quantum illum + R6.1
- cog-ICU-meg (20y): SQUID + R14 V3
Three deployment scenarios:
- Hybrid ICU bed (5y): 0/bed (4xESP32 + NV-diamond) vs ,000 monitor
- Atomic-clock mm-precision multistatic (10y): high-security access
- NV-drone disaster magnetometry (15y): 2.5x rubble depth over R18
Integration with existing nvsim (ADR-089):
- Magnetic-field time series -> R14 V1 vitals fusion
- Field map -> R12 PABS structural anomaly extension
- Stability indicator -> R7 mincut additional consistency channel
Future cog: cog-quantum-fusion or cog-quantum-vitals.
THE CLEANEST 'LOOP IS SENSOR-AGNOSTIC' DEMONSTRATION:
Even when classical CSI hits its physics floors (R13, R1 bandwidth,
R6.1 penalty), the ARCHITECTURE STAYS THE SAME; only the sensor swaps.
R6 forward model, R12 PABS, R7 mincut, R3 cross-room, R14 V1/V2/V3
framework — all apply to quantum sensors with parameter swaps.
This is the loop's architectural value proposition in its most explicit form.
Honest scope (very important):
- Most quantum tech is 10-20y from edge deployment
- nvsim is a SIMULATOR, not real hardware
- All 'improvement' numbers are theoretical bounds; real-world 30-70%
- Loop has NO real quantum sensor on bench
R20 special status:
- 8th exotic vertical
- First requiring quantum hardware for full realisation
- Most explicitly 10-20y horizon (matches cron prompt criteria)
- Recovers R13 NEGATIVE via different sensing modality
Composes with every loop thread + ADR-089 nvsim + ADR-113 placement.
Coordination: ticks/tick-37.md, no PROGRESS.md edit.
Loop summary: 18 research threads, 8 exotic verticals, 6 loop ADRs,
3 negative result categories (R13 conditionally recoverable now),
production roadmap shipped. 00-summary.md to follow at 12:00 UTC stop.
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