Coarse-grained quantum state tomography with optimal POVM construction
Coarse-grained quantum state tomography with optimal POVM construction
Constructing an integrated large-scale qubit system of realistic size requires addressing the challenge of physical crowding among qubits. This constraint poses an issue of coarse-grained (CG) measurement, wherein information from the multi-qubit system is collectively gathered. In this work, we introduce a novel approach to reconstruct the target density matrix …