633 lines
26 KiB
Markdown
633 lines
26 KiB
Markdown
# ruQu: Quantum Execution Intelligence Engine
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<p align="center">
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<a href="https://crates.io/crates/ruqu"><img src="https://img.shields.io/crates/v/ruqu?style=for-the-badge&logo=rust&color=orange" alt="Crates.io"></a>
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<a href="https://docs.rs/ruqu"><img src="https://img.shields.io/docsrs/ruqu?style=for-the-badge&logo=docs.rs" alt="docs.rs"></a>
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<a href="https://crates.io/crates/ruqu"><img src="https://img.shields.io/crates/d/ruqu?style=for-the-badge" alt="Downloads"></a>
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</p>
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<p align="center">
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<a href="https://ruv.io"><img src="https://img.shields.io/badge/ruv.io-quantum_computing-blueviolet?style=for-the-badge" alt="ruv.io"></a>
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<a href="https://github.com/ruvnet/ruvector"><img src="https://img.shields.io/badge/RuVector-monorepo-orange?style=for-the-badge&logo=github" alt="RuVector"></a>
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</p>
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<p align="center">
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<img src="https://img.shields.io/badge/modules-30-blue" alt="Modules">
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<img src="https://img.shields.io/badge/lines-24%2C676_Rust-orange" alt="Lines">
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<img src="https://img.shields.io/badge/backends-5_(SV%2CStab%2CTN%2CClifford%2BT%2CHardware)-green" alt="Backends">
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<img src="https://img.shields.io/badge/latency-468ns_P99-blue" alt="P99 Latency">
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<img src="https://img.shields.io/badge/license-MIT%2FApache--2.0-green" alt="License">
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<img src="https://img.shields.io/badge/rust-1.77%2B-orange?logo=rust" alt="Rust">
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</p>
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<p align="center">
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<strong>A full-stack quantum computing platform in pure Rust: simulate, optimize, execute, correct, and verify quantum workloads across heterogeneous backends.</strong>
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</p>
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<p align="center">
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<em>From circuit construction to hardware dispatch. From noise modeling to error correction. From approximate simulation to auditable science.</em>
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</p>
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<p align="center">
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<a href="#platform-overview">Overview</a> •
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<a href="#the-five-layers">Layers</a> •
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<a href="#module-reference">Modules</a> •
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<a href="#try-it-in-5-minutes">Try It</a> •
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<a href="#coherence-gating">Coherence Gate</a> •
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<a href="#tutorials">Tutorials</a> •
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<a href="https://ruv.io">ruv.io</a>
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</p>
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---
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## Platform Overview
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ruQu is not a simulator. It is a **quantum execution intelligence engine** -- a layered operating stack that decides *how*, *where*, and *whether* to run quantum workloads.
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Most quantum frameworks do one thing: simulate circuits. ruQu does five:
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| Capability | What It Means | How It Works |
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|------------|--------------|--------------|
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| **Simulate** | Run circuits on the right backend | Cost-model planner selects StateVector, Stabilizer, TensorNetwork, or Clifford+T based on circuit structure |
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| **Optimize** | Compile circuits for real hardware | Transpiler decomposes to native gate sets, routes qubits to physical topology, cancels redundant gates |
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| **Execute** | Dispatch to IBM, IonQ, Rigetti, Braket | Hardware abstraction layer with automatic fallback to local simulation |
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| **Correct** | Decode errors in real time | Union-find and subpolynomial partitioned decoders with adaptive code distance |
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| **Verify** | Prove results are correct | Cross-backend comparison, statistical certification, tamper-evident audit trails |
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### What Makes It Different
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**Hybrid decomposition.** Large circuits are partitioned by entanglement structure -- Clifford-heavy regions run on the stabilizer backend (millions of qubits), low-entanglement regions run on tensor networks, and only the dense entangled core hits the exponential statevector. One 200-qubit circuit becomes three tractable simulations stitched probabilistically.
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**No mocks.** Every module runs real math. Noise channels apply real Kraus operators. Decoders run real union-find with path compression. The Clifford+T backend performs genuine Bravyi-Gosset stabilizer rank decomposition. The benchmark suite doesn't assert "it works" -- it proves quantitative advantages.
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**Coherence gating.** ruQu's original innovation: real-time structural health monitoring using boundary-to-boundary min-cut analysis. Before any operation, the system answers: "Is it safe to act?" This turns quantum computers from fragile experiments into self-aware machines.
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---
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## The Five Layers
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```
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Layer 5: Proof Suite benchmark.rs
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Layer 4: Theory subpoly_decoder.rs, control_theory.rs
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Layer 3: QEC Control Plane decoder.rs, qec_scheduler.rs
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Layer 2: SOTA Differentiation planner.rs, clifford_t.rs, decomposition.rs
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Layer 1: Scientific Instrument noise.rs, mitigation.rs, transpiler.rs,
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(9 modules) hardware.rs, qasm.rs, replay.rs,
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witness.rs, confidence.rs, verification.rs
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Layer 0: Core Engine circuit.rs, gate.rs, state.rs, backend.rs,
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(existing) stabilizer.rs, tensor_network.rs, simulator.rs,
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simd.rs, optimizer.rs, types.rs, error.rs,
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mixed_precision.rs, circuit_analyzer.rs
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```
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---
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## Module Reference
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### Layer 0: Core Engine (13 modules)
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The foundation: circuit construction, state evolution, and backend dispatch.
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| Module | Lines | Description |
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|--------|------:|-------------|
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| `circuit.rs` | 185 | Quantum circuit builder with fluent API |
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| `gate.rs` | 204 | Universal gate set: H, X, Y, Z, S, T, CNOT, CZ, SWAP, Rx, Ry, Rz, arbitrary unitaries |
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| `state.rs` | 453 | Complex128 statevector with measurement and partial trace |
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| `backend.rs` | 462 | Backend trait + auto-selector across StateVector, Stabilizer, TensorNetwork |
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| `stabilizer.rs` | 774 | Gottesman-Knill tableau simulator for Clifford circuits (unlimited qubits) |
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| `tensor_network.rs` | 863 | MPS-based tensor network with configurable bond dimension |
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| `simulator.rs` | 221 | Unified execution entry point |
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| `simd.rs` | 469 | AVX2/NEON vectorized gate kernels |
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| `optimizer.rs` | 94 | Gate fusion and cancellation passes |
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| `mixed_precision.rs` | 756 | f32/f64 adaptive precision for memory/speed tradeoff |
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| `circuit_analyzer.rs` | 446 | Static analysis: gate counts, Clifford fraction, entanglement profile |
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| `types.rs` | 263 | Shared type definitions |
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| `error.rs` | -- | Error types |
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### Layer 1: Scientific Instrument (9 modules)
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Everything needed to run quantum circuits as rigorous science.
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| Module | Lines | Description |
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|--------|------:|-------------|
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| `noise.rs` | 1,174 | Kraus channel noise: depolarizing, amplitude damping (T1), phase damping (T2), readout error, thermal relaxation, crosstalk (ZZ coupling) |
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| `mitigation.rs` | 1,275 | Zero-Noise Extrapolation via gate folding + Richardson extrapolation; measurement error correction via confusion matrix inversion; Clifford Data Regression |
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| `transpiler.rs` | 1,210 | Basis gate decomposition (IBM/IonQ/Rigetti gate sets), BFS qubit routing on hardware topology, gate cancellation optimization |
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| `hardware.rs` | 1,764 | Provider trait HAL with adapters for IBM Quantum, IonQ, Rigetti, Amazon Braket + local simulator fallback |
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| `qasm.rs` | 967 | OpenQASM 3.0 export with ZYZ Euler decomposition for arbitrary single-qubit unitaries |
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| `replay.rs` | 556 | Deterministic replay engine -- seeded RNG, state checkpoints, circuit hashing for exact reproducibility |
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| `witness.rs` | 724 | SHA-256 hash-chain witness logging -- tamper-evident audit trail with JSON export and chain verification |
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| `confidence.rs` | 932 | Wilson score intervals, Clopper-Pearson exact bounds, chi-squared goodness-of-fit, total variation distance, shot budget calculator |
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| `verification.rs` | 1,190 | Automatic cross-backend comparison with statistical certification (exact/statistical/trend match levels) |
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### Layer 2: SOTA Differentiation (3 modules)
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Where ruQu separates from every other framework.
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| Module | Lines | Description |
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|--------|------:|-------------|
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| `planner.rs` | 1,393 | **Cost-model circuit router** -- predicts memory, runtime, fidelity for each backend. Selects optimal execution plan with verification policy and mitigation strategy. Entanglement budget estimation. |
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| `clifford_t.rs` | 996 | **Extended stabilizer simulation** via Bravyi-Gosset low-rank decomposition. T-gates double stabilizer terms (2^t scaling). Bridges the gap between Clifford-only (unlimited qubits) and statevector (32 qubits). |
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| `decomposition.rs` | 1,409 | **Hybrid circuit partitioning** -- builds interaction graph, finds connected components, applies spatial/temporal decomposition. Classifies segments by gate composition. Probabilistic result stitching. |
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### Layer 3: QEC Control Plane (2 modules)
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Real-time quantum error correction infrastructure.
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| Module | Lines | Description |
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|--------|------:|-------------|
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| `decoder.rs` | 1,923 | **Union-find decoder** O(n*alpha(n)) + partitioned tiled decoder for sublinear wall-clock scaling. Adaptive code distance controller. Logical qubit allocator for surface code patches. Built-in benchmarking. |
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| `qec_scheduler.rs` | 1,443 | Surface code syndrome extraction scheduling, feed-forward optimization (eliminates unnecessary classical dependencies), dependency graph with critical path analysis. |
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### Layer 4: Theoretical Foundations (2 modules)
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Provable complexity results and formal analysis.
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| Module | Lines | Description |
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|--------|------:|-------------|
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| `subpoly_decoder.rs` | 1,207 | **HierarchicalTiledDecoder**: recursive multi-scale tiling achieving O(d^(2-epsilon) * polylog(d)). **RenormalizationDecoder**: coarse-grain syndrome lattice across log(d) scales. **SlidingWindowDecoder**: streaming decode for real-time QEC. **ComplexityAnalyzer**: provable complexity certificates. |
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| `control_theory.rs` | 433 | QEC as discrete-time control system -- stability conditions, resource optimization, latency budget planning, backlog simulation, scaling laws for classical overhead and logical error suppression. |
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### Layer 5: Proof Suite (1 module)
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Quantitative evidence that the architecture delivers measurable advantages.
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| Module | Lines | Description |
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|--------|------:|-------------|
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| `benchmark.rs` | 790 | **Proof 1**: cost-model routing beats naive and heuristic selectors. **Proof 2**: entanglement budgeting enforced as compiler constraint. **Proof 3**: partitioned decoder shows measurable latency gains vs union-find. **Proof 4**: cross-backend certification with bounded TVD error guarantees. |
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### Totals
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| Metric | Value |
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|--------|-------|
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| Total modules | 30 |
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| Total lines of Rust | 24,676 |
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| New modules (execution engine) | 20 |
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| New lines (execution engine) | ~20,000 |
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| Simulation backends | 5 (StateVector, Stabilizer, TensorNetwork, Clifford+T, Hardware) |
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| Hardware providers | 4 (IBM Quantum, IonQ, Rigetti, Amazon Braket) |
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| Noise channels | 6 (depolarizing, amplitude damping, phase damping, readout, thermal, crosstalk) |
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| Mitigation strategies | 3 (ZNE, MEC, CDR) |
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| Decoder algorithms | 5 (union-find, tiled, hierarchical, renormalization, sliding-window) |
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---
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## Coherence Gating
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ruQu's original capability: a **classical nervous system** for quantum machines. Real-time structural health monitoring that answers one question before every operation: *"Is it safe to act?"*
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```
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Syndrome Stream --> [Min-Cut Analysis] --> PERMIT / DEFER / DENY
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"Is the error pattern
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structurally safe?"
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```
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| Decision | Meaning | Action |
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|----------|---------|--------|
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| **PERMIT** | Errors scattered, structure healthy | Full-speed operation |
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| **DEFER** | Borderline, uncertain | Proceed with caution, reduce workload |
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| **DENY** | Correlated errors, structural collapse risk | Quarantine region, isolate failure |
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### Why Coherence Gating Matters
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**Without ruQu**: Quantum computer runs blind until logical failure -> full reset -> lose all progress.
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**With ruQu**: Quantum computer detects structural degradation *before* failure -> isolates damaged region -> healthy regions keep running.
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### Validated Results
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| Metric | Result (d=5, p=0.1%) |
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|--------|---------------------|
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| Median lead time | 4 cycles before failure |
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| Recall | 85.7% |
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| False alarms | 2.0 per 10k cycles |
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| Actionable (2-cycle mitigation) | 100% |
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### Performance
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| Metric | Target | Measured |
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|--------|--------|----------|
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| Tick P99 | <4,000 ns | 468 ns |
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| Tick Average | <2,000 ns | 260 ns |
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| Merge P99 | <10,000 ns | 3,133 ns |
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| Min-cut query | <5,000 ns | 1,026 ns |
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| Throughput | 1M/sec | 3.8M/sec |
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| Popcount (1024 bits) | -- | 13 ns (SIMD) |
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---
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## Try It in 5 Minutes
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### Option 1: Add to Your Project
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```bash
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cargo add ruqu --features structural
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```
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```rust
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use ruqu::{QuantumFabric, FabricBuilder, GateDecision};
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fn main() -> Result<(), ruqu::RuQuError> {
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let mut fabric = FabricBuilder::new()
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.num_tiles(256)
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.syndrome_buffer_depth(1024)
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.build()?;
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let syndrome_data = [0u8; 64]; // From your quantum hardware
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let decision = fabric.process_cycle(&syndrome_data)?;
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match decision {
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GateDecision::Permit => println!("Safe to proceed"),
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GateDecision::Defer => println!("Proceed with caution"),
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GateDecision::Deny => println!("Region unsafe"),
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}
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Ok(())
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}
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```
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### Option 2: Run the Interactive Demo
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```bash
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git clone https://github.com/ruvnet/ruvector
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cd ruvector
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cargo run -p ruqu --bin ruqu_demo --release -- --distance 5 --rounds 1000 --error-rate 0.01
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```
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### Option 3: Use the Quantum Execution Engine (ruqu-core)
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```rust
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use ruqu_core::circuit::QuantumCircuit;
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use ruqu_core::planner::{plan_execution, PlannerConfig};
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use ruqu_core::decomposition::decompose;
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// Build a circuit
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let mut circ = QuantumCircuit::new(10);
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circ.h(0);
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for i in 0..9 { circ.cnot(i, i + 1); }
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// Plan: auto-selects optimal backend
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let plan = plan_execution(&circ, &PlannerConfig::default());
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// Or decompose for multi-backend execution
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let partition = decompose(&circ, 25);
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```
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---
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## Feature Flags
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| Feature | What It Enables | When to Use |
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|---------|----------------|-------------|
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| `structural` | Real O(n^{o(1)}) min-cut algorithm | Default -- always recommended |
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| `decoder` | Fusion-blossom MWPM decoder | Surface code error correction |
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| `attention` | 50% FLOPs reduction via coherence routing | High-throughput systems |
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| `simd` | AVX2 vectorized bitmap operations | x86_64 performance |
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| `full` | All features enabled | Production deployments |
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---
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## Ecosystem
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| Crate | Description |
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|-------|-------------|
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| [`ruqu`](https://crates.io/crates/ruqu) | Coherence gating + top-level API |
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| [`ruqu-core`](https://crates.io/crates/ruqu-core) | Quantum execution engine (30 modules, 24K lines) |
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| [`ruqu-algorithms`](https://crates.io/crates/ruqu-algorithms) | VQE, Grover, QAOA, surface code algorithms |
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| [`ruqu-exotic`](https://crates.io/crates/ruqu-exotic) | Quantum-classical hybrid algorithms |
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| [`ruqu-wasm`](https://crates.io/crates/ruqu-wasm) | WebAssembly bindings |
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---
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## Tutorials
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<details>
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<summary><strong>Tutorial 1: Your First Coherence Gate</strong></summary>
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### Setting Up a Basic Gate
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```rust
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use ruqu::{
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tile::{WorkerTile, TileZero, TileReport, GateDecision},
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syndrome::DetectorBitmap,
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};
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fn main() {
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// Create a worker tile (ID 1-255)
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let mut worker = WorkerTile::new(1);
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// Create TileZero (the coordinator)
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let mut coordinator = TileZero::new();
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// Simulate a syndrome measurement
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let mut detectors = DetectorBitmap::new(64);
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detectors.set(5, true); // Detector 5 fired
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detectors.set(12, true); // Detector 12 fired
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println!("Detectors fired: {}", detectors.fired_count());
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// Worker processes the syndrome
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let report = worker.tick(&detectors);
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println!("Worker report - cut_value: {}", report.local_cut);
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// Coordinator merges reports and decides
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let decision = coordinator.merge(&[report]);
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match decision {
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GateDecision::Permit => println!("System coherent, proceed"),
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GateDecision::Defer => println!("Borderline, use caution"),
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GateDecision::Deny => println!("Structural issue detected"),
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}
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}
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```
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**Key Concepts:**
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- **WorkerTile**: Processes local patch of qubits
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- **TileZero**: Coordinates all workers, makes global decision
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- **DetectorBitmap**: Efficient representation of which detectors fired
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</details>
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<details>
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<summary><strong>Tutorial 2: Understanding the Three-Filter Pipeline</strong></summary>
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### How Decisions Are Made
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ruQu uses three filters that must all pass for a PERMIT decision:
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```
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Syndrome Data -> [Structural] -> [Shift] -> [Evidence] -> Decision
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Min-cut OK? Distribution E-value
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stable? accumulated?
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```
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| Filter | Purpose | Passes When |
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|--------|---------|-------------|
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| **Structural** | Graph connectivity | Min-cut value > threshold |
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| **Shift** | Distribution stability | Recent stats match baseline |
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| **Evidence** | Accumulated confidence | E-value in safe range |
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</details>
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<details>
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<summary><strong>Tutorial 3: Cryptographic Audit Trail</strong></summary>
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### Tamper-Evident Decision Logging
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Every gate decision is logged in a Blake3 hash chain for audit compliance.
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```rust
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use ruqu::tile::{ReceiptLog, GateDecision};
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fn main() {
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let mut log = ReceiptLog::new();
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log.append(GateDecision::Permit, 1, 1000000, [0u8; 32]);
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log.append(GateDecision::Permit, 2, 2000000, [1u8; 32]);
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log.append(GateDecision::Deny, 3, 3000000, [2u8; 32]);
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// Verify chain integrity
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assert!(log.verify_chain(), "Chain should be valid");
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// Retrieve specific entry
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if let Some(entry) = log.get(2) {
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println!("Decision at seq 2: {:?}", entry.decision);
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println!("Hash: {:x?}", &entry.hash[..8]);
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}
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}
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```
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**Security Properties:**
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- Blake3 hashing: fast, cryptographically secure
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- Chain integrity: each entry links to previous
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- Constant-time verification: prevents timing attacks
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</details>
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<details>
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<summary><strong>Tutorial 4: Drift Detection for Noise Characterization</strong></summary>
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### Detecting Changes in Error Rates Over Time
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Based on arXiv:2511.09491, ruQu can detect when noise characteristics change without direct hardware access.
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```rust
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use ruqu::adaptive::{DriftDetector, DriftProfile};
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let mut detector = DriftDetector::new(100); // 100-sample window
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for sample in samples {
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detector.push(sample);
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if let Some(profile) = detector.detect() {
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match profile {
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DriftProfile::Stable => { /* Normal operation */ }
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DriftProfile::Linear { slope, .. } => { /* Compensate for trend */ }
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DriftProfile::StepChange { magnitude, .. } => { /* Alert: sudden shift */ }
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DriftProfile::Oscillating { .. } => { /* Periodic noise source */ }
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DriftProfile::VarianceExpansion { ratio } => { /* Increasing noise */ }
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}
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}
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}
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```
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| Profile | Indicates | Typical Cause |
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|
|---------|-----------|---------------|
|
|
| **Stable** | Normal | -- |
|
|
| **Linear** | Gradual degradation | Qubit aging, thermal drift |
|
|
| **StepChange** | Sudden event | TLS defect, cosmic ray, cable fault |
|
|
| **Oscillating** | Periodic interference | Cryocooler, 60Hz, mechanical vibration |
|
|
| **VarianceExpansion** | Increasing chaos | Multi-source interference |
|
|
|
|
</details>
|
|
|
|
<details>
|
|
<summary><strong>Tutorial 5: Model Export/Import for Reproducibility</strong></summary>
|
|
|
|
### Save and Load Learned Parameters
|
|
|
|
Export trained models as a compact 105-byte binary for reproducibility, testing, and deployment.
|
|
|
|
```
|
|
Offset Size Field
|
|
------------------------------
|
|
0 4 Magic "RUQU"
|
|
4 1 Version (1)
|
|
5 8 Seed (u64)
|
|
13 4 Code distance (u32)
|
|
17 8 Error rate (f64)
|
|
25 40 Learned thresholds (5 x f64)
|
|
65 40 Statistics (5 x f64)
|
|
------------------------------
|
|
Total: 105 bytes
|
|
```
|
|
|
|
```rust
|
|
// Export
|
|
let model_bytes = simulation_model.export(); // 105 bytes
|
|
std::fs::write("model.ruqu", &model_bytes)?;
|
|
|
|
// Import and reproduce
|
|
let imported = SimulationModel::import(&model_bytes)?;
|
|
assert_eq!(imported.seed, original.seed);
|
|
```
|
|
|
|
</details>
|
|
|
|
---
|
|
|
|
## Architecture
|
|
|
|
### System Diagram
|
|
|
|
```
|
|
+----------------------------+
|
|
| Quantum Algorithms | (VQE, Grover, QAOA)
|
|
+-------------+--------------+
|
|
|
|
|
+-----------------------+------------------------+
|
|
| | |
|
|
+-----v------+ +-----------v----------+ +----------v--------+
|
|
| Planner | | Decomposition | | Clifford+T |
|
|
| cost-model | | hybrid partition | | stabilizer rank |
|
|
| routing | | graph min-cut | | decomposition |
|
|
+-----+------+ +-----------+-----------+ +----------+--------+
|
|
| | |
|
|
+-----v-----------------------v------------------------v--------+
|
|
| Core Backends (existing + enhanced) |
|
|
| StateVector | Stabilizer | TensorNetwork | MixedPrecision |
|
|
+-----+-----------------------+------------------------+--------+
|
|
| | |
|
|
+-----v------+ +-----------v----------+ +----------v--------+
|
|
| Noise | | Mitigation | | Transpiler |
|
|
| channels | | ZNE / CDR / MEC | | routing + opt |
|
|
+------------+ +----------------------+ +-------------------+
|
|
| | |
|
|
+-----v-----------------------v------------------------v--------+
|
|
| Scientific Instrument Layer |
|
|
| Replay | Witness | Confidence | Verification | QASM |
|
|
+-----------------------------+--------------------------------+
|
|
|
|
|
+-----------------------------v--------------------------------+
|
|
| QEC Control Plane |
|
|
| Decoder | Scheduler | SubpolyDecoder | ControlTheory |
|
|
+-----------------------------+--------------------------------+
|
|
|
|
|
+-------------v--------------+
|
|
| Hardware Providers |
|
|
| IBM | IonQ | Rigetti | |
|
|
| Braket | Local Sim |
|
|
+----------------------------+
|
|
```
|
|
|
|
### 256-Tile Fabric (Coherence Gating)
|
|
|
|
```
|
|
+---------------+
|
|
| TileZero |
|
|
| (Coordinator) |
|
|
+-------+-------+
|
|
|
|
|
+----------------+----------------+
|
|
| | |
|
|
+------+------+ +------+------+ +------+------+
|
|
| WorkerTile 1| | WorkerTile 2| |WorkerTile255|
|
|
| (64KB) | | (64KB) | | (64KB) |
|
|
+-------------+ +-------------+ +-------------+
|
|
| | |
|
|
[Patch Graph] [Patch Graph] [Patch Graph]
|
|
[Syndrome Buf] [Syndrome Buf] [Syndrome Buf]
|
|
[Evidence Acc] [Evidence Acc] [Evidence Acc]
|
|
```
|
|
|
|
---
|
|
|
|
## Security
|
|
|
|
| Component | Algorithm | Purpose |
|
|
|-----------|-----------|---------|
|
|
| Hash chain | Blake3 | Tamper-evident audit trail |
|
|
| Token signing | Ed25519 | Unforgeable permit tokens |
|
|
| Witness log | SHA-256 chain | Execution provenance |
|
|
| Comparisons | Constant-time | Timing attack prevention |
|
|
|
|
---
|
|
|
|
## Application Domains
|
|
|
|
| Domain | How ruQu Helps |
|
|
|--------|---------------|
|
|
| **Healthcare** | Longer, patient-specific quantum simulations for protein folding and drug interactions. Coherence gating prevents silent corruption in clinical-grade computation. |
|
|
| **Finance** | Continuous portfolio risk modeling with real-time stability monitoring. Auditable execution trails for regulated environments. |
|
|
| **QEC Research** | Full decoder pipeline with 5 algorithms from union-find to subpolynomial partitioned decoding. Benchmarkable scaling claims. |
|
|
| **Cloud Quantum** | Multi-backend workload routing. Automatic degraded-mode operation via coherence-aware scheduling. |
|
|
| **Hardware Vendors** | Transpiler targets IBM/IonQ/Rigetti/Braket gate sets. Noise characterization and drift detection without direct hardware access. |
|
|
|
|
---
|
|
|
|
## Limitations
|
|
|
|
| Limitation | Impact | Path Forward |
|
|
|------------|--------|--------------|
|
|
| Simulation-only validation | Hardware behavior may differ | Hardware partner integration |
|
|
| Greedy spatial partitioning | Not optimal min-cut | Stoer-Wagner / spectral bisection |
|
|
| No end-to-end pipeline | Modules exist independently | Compose decompose -> execute -> stitch -> certify |
|
|
| CliffordT not in classifier | Bridge layer disconnected from auto-routing | Integrate T-rank into planner decisions |
|
|
| No fidelity-aware stitching | Cut error unbounded | Model Schmidt coefficient loss at partition boundaries |
|
|
|
|
---
|
|
|
|
## Roadmap
|
|
|
|
| Phase | Goal | Status |
|
|
|-------|------|--------|
|
|
| v0.1 | Core coherence gate with min-cut | Done |
|
|
| v0.2 | Predictive early warning, drift detection | Done |
|
|
| v0.3 | Quantum execution engine (20 modules) | Done |
|
|
| v0.4 | Formal hybrid decomposition with scaling proof | Next |
|
|
| v0.5 | Hardware integration + end-to-end pipeline | Planned |
|
|
| v1.0 | Production-ready with hardware validation | Planned |
|
|
|
|
---
|
|
|
|
## References
|
|
|
|
### Academic
|
|
|
|
- [El-Hayek, Henzinger, Li. "Dynamic Min-Cut with Subpolynomial Update Time." arXiv:2512.13105, 2025](https://arxiv.org/abs/2512.13105)
|
|
- [Bravyi, Gosset. "Improved Classical Simulation of Quantum Circuits Dominated by Clifford Gates." PRL, 2016](https://arxiv.org/abs/1601.07601)
|
|
- [Google Quantum AI. "Quantum error correction below the surface code threshold." Nature, 2024](https://www.nature.com/articles/s41586-024-08449-y)
|
|
- [Riverlane. "Collision Clustering Decoder." Nature Communications, 2025](https://www.nature.com/articles/s41467-024-54738-z)
|
|
- [arXiv:2511.09491 -- Window-based drift estimation for QEC](https://arxiv.org/abs/2511.09491)
|
|
|
|
### Project
|
|
|
|
- [ADR-QE-001: Quantum Engine Core Architecture](https://github.com/ruvnet/ruvector/blob/main/docs/adr/quantum-engine/ADR-QE-001-quantum-engine-core-architecture.md)
|
|
- [ADR-QE-015: Execution Engine Module Map](https://github.com/ruvnet/ruvector/blob/main/docs/adr/quantum-engine/)
|
|
|
|
---
|
|
|
|
## License
|
|
|
|
MIT OR Apache-2.0
|
|
|
|
---
|
|
|
|
<p align="center">
|
|
<strong>ruQu -- Quantum execution intelligence in pure Rust.</strong>
|
|
</p>
|
|
|
|
<p align="center">
|
|
<a href="https://ruv.io">ruv.io</a> •
|
|
<a href="https://github.com/ruvnet/ruvector">RuVector</a> •
|
|
<a href="https://github.com/ruvnet/ruvector/issues">Issues</a>
|
|
</p>
|
|
|
|
<p align="center">
|
|
<sub>Built by <a href="https://ruv.io">ruv.io</a></sub>
|
|
</p>
|