Research result
ECHO120
120-logical-qubit echo evolution
120 / logical qubits
The work
ECHO120 investigates a forward–perturb–reverse computational route at 120-logical-qubit width. The research question is whether the relevant logical relations and observables can be advanced and recovered without materializing a global dense statevector.
Claim boundary
This is a specific echo workload. It is not presented here as an identical reproduction of Google Willow’s workload or as a universal quantum-advantage benchmark.
Evidence status in this website
A versioned execution report is not attached to this website build. Runtime, speedup and independent-verification claims are intentionally not published in this card.