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.
Avoiding barren plateaus in the variational determination of geometric entanglement.Quantum Science and Technology, 9(2):025016, February 2024
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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.