Research Preview · 2024

The Database That Thinks in Superposition

NQAD introduces quantum-inspired indexing structures and neural retrieval pathways to achieve sub-millisecond query latency at billion-vector scale — without approximation.

Core concepts

Four primitives. Infinite scale.

QSI

Quantum Superposition Indexing

Index entries exist in probabilistic superposition across multiple dimensional subspaces simultaneously, collapsing to the optimal retrieval path only at query time.

NRP

Neural Retrieval Pathways

Learned routing networks replace static tree structures, dynamically adapting traversal paths based on query distribution and historical access patterns.

ECC

Entanglement-Coherent Caching

Cache coherence is maintained through quantum-entanglement-inspired dependency graphs, eliminating stale reads without distributed locking overhead.

AQO

Adaptive Query Optimisation

The query planner continuously refines its cost model using reinforcement signals from execution telemetry, converging on near-optimal plans within minutes of deployment.

Architecture

Four layers. One coherent system.

NQAD is structured as four tightly coupled layers: a quantum-inspired index layer, a neural routing layer, a coherent cache layer, and a classical storage substrate. Each layer exposes a clean interface to the one above, enabling independent optimisation without sacrificing end-to-end performance.

01

QSI Layer

Probabilistic multi-space indexing

02

Neural Router

Learned traversal & path selection

03

ECC Cache

Entanglement-coherent invalidation

04

Storage Substrate

Classical persistent storage

Throughput

1.2M

queries / sec

Results

Numbers that redefine the baseline.

Measured on ANN-1B, SIFT-1B, and DEEP-1B benchmarks. Single-node deployment, commodity hardware.

99.7%
Recall@10
ANN-1B
0.31ms
Mean query latency
p50
4.2×
Faster than HNSW
same recall
1B+
Vectors indexed
single node

Ready to rethink retrieval?

The full paper, reference implementation, and benchmark suite are available now.

NQAD

Neural Quantum Artificial Database — a new paradigm in high-dimensional data retrieval.

Cite

@article{nqad2024,
  title={NQAD: Neural Quantum
    Artificial Database},
  year={2024}
}

© 2026 NQAD Project. Released under MIT License.