DA-CASE reconstructs subspace, Hamiltonian, and observable matrices from one cached Pauli expectation bank, reducing retained measurement width on H4 from 7371 to 2240 words without changing the solved subspace.
Finite-shot adaptive growth at eight qubits remains costly and unreliable in the present implementation
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DA-CASE: reusable measurements for adaptive quantum subspaces
DA-CASE reconstructs subspace, Hamiltonian, and observable matrices from one cached Pauli expectation bank, reducing retained measurement width on H4 from 7371 to 2240 words without changing the solved subspace.