Energy · utilities

Which assets fail together: the network’s response, simulated past the classical limit

The response of a 156-node network simulated to eight time steps on a 156-qubit processor; the classical simulator we ran stopped at six. For a planner, that is the contingency case read further than the reference tool reaches.

Headline result

8 steps vs 6

eight time steps at high significance on 156 qubits, in three minutes

Measured on quantum hardware
Still from the Merlin Quantum film: transmission towers at dusk
01 · The decision

The decision on the table

When a line trips, which assets fail together and where the stress concentrates is answered today by contingency analysis run case by case on a simplified model. The full coupled response is what a planner needs and what the reference simulator runs out of.

02 · What we did

What we did, with proprietary methods

The network was simulated as one coupled system on the whole processor, at the same circuit depth for every time step, and the response measured step by step. The classical simulator was run on the same problem to find where it stops.

03 · What it was worth

What it was worth

eight time steps at high significance on 156 qubits, in three minutes

Key result · Energy · utilities
The response measured two steps further than the reference
Baseline
the classical simulator we ran, which stopped at six steps
Condition
eight time steps at high significance on 156 qubits, in three minutes
The same depth at every step and width
Baseline
circuits that grow with the simulated time
Condition
three entangling layers at every width from five to 156 qubits
Outcome

What happened next

For a client, the next step is the first engagement on this page’s industry: you send one expansion case, as a network file with in-service status honoured. You get back the proven plan and the gap. Two weeks.

Decision it enabled

The response measured two steps further than the reference

Instead of: the classical simulator we ran, which stopped at six steps

Verified by · Measured on quantum hardware; the classical comparison is the simulator we ran, named with its settings on the result.

05 · How we know

How we know

  1. 01156-qubit collective-response simulation to eight time steps; the classical simulator we ran stopped at six. Superconducting processor.
  2. 02Fixed circuit depth at every simulated time and qubit count; 126 qubits in one job.
  3. 03Not claimed: a commercial quantum benefit for grid planning. These findings do not establish one.
StatusMeasured on quantum hardwareMeasured on quantum hardware; the classical comparison is the simulator we ran, named with its settings on the result.

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