v0.9.2 — 200+ Qubit Simulation (MPS + Sparse)

🚀 Quanta SDK v0.9.2

Highlights

• 200+ qubit simulation via new MPS (tensor network) simulator
• Sparse statevector for 40-50 qubit circuits with O(k) memory
• SimulatorBackend ABC — clean architecture for all 6 backends
• Circuit-aware router — automatic simulator selection
• Security hardening — exec() sandbox, eval() elimination, traceback fix
• L3 decoupling — all 10 algorithms use factory pattern

New Simulator Backends

Simulator	Max Qubits	Memory	Best For
Dense	27	O(2ⁿ)	Full accuracy
Sparse (NEW)	50	O(k)	GHZ, oracle, product
MPS (NEW)	200+	O(n·χ²)	QAOA, VQE, 1D circuits
Clifford	1000+	O(n²)	Stabilizer circuits

Quality

• 820 tests pass (up from 774)
• 0 ruff lint errors
• 91% code coverage
• Cross-validated: all new simulators verified against dense simulator

Security (from v0.9.1)

• exec() sandboxed with _SAFE_BUILTINS + _validate_code()
• eval() eliminated — pure AST walker in QASM import
• All MCP error responses sanitized (no traceback leaks)

Install

pip install --upgrade quanta-sdk

Full changelog: CHANGELOG.md