Standardised Synchronisation Benchmark Suite

This suite defines canonical coupled-oscillator benchmark instances and a stable result schema. It is a contract for future backends, not a new hardware claim.

Result schema

Required result fields:

• benchmark_id
• backend
• backend_version
• command
• commit
• dependency_lock
• hardware_submission
• wall_time_s
• observables
• claim_boundary

Observable row fields:

• name
• value
• uncertainty
• units
• tolerance
• passed

Canonical instances

Benchmark	Family	N	Evidence class	Required backends	Claim boundary
kuramoto_ring_n4_linear_omega	kuramoto_xy_reference	4	analytic_reference	classical_ode, exact_diagonalisation	Reference smoke instance for compiler and observable consistency; not a hardware-performance or advantage claim.
kuramoto_chain_n8_decay_omega	kuramoto_xy_reference	8	simulator_reference	classical_ode, exact_diagonalisation	Simulator/reference benchmark for scaling behaviour; not a broad quantum-advantage claim.
phase1_dla_parity_n4_ibm_kingston	hardware_replay	4	hardware_replay	hardware_replay, classical_parity_reference	Replays committed raw counts only; does not submit QPU jobs or promote broader scaling, mitigation, or advantage claims.
bkt_finite_size_grid_planned	phase_transition_reference	16	planned	classical_xy, exact_or_tensor_reference	Visible roadmap row only; not an available benchmark result.

Hardware rule

hardware_submission must be false unless a preregistered manifest, QPU budget, raw-count target path, and explicit approval are recorded

Claim boundary

The registry defines benchmark contracts and replay rows. It does not create new hardware evidence or quantum-advantage claims.