A projected least-squares tomography protocol adapted for distributed quantum processors delivers rigorous non-asymptotic trace-norm error bounds that grow exponentially with the number of nodes and certified bounds on entanglement negativity.
Scalable estimation of pure multi-qubit states.npj Quantum Information, 8(1):57, May 2022
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Rigorous quantum state tomography for distributed quantum computing
A projected least-squares tomography protocol adapted for distributed quantum processors delivers rigorous non-asymptotic trace-norm error bounds that grow exponentially with the number of nodes and certified bounds on entanglement negativity.