EPJ Quantum Technology

Table 1 Mean results (± standard deviation) before and after noise removal between ground truth state tomography and our models

From: On the learnability of quantum state fidelity

Model	Before Noise Removal			After Noise Removal
Model	Correlation factor	MAE	RMSE	Correlation factor	MAE	RMSE
3-qubit model	0.6745	0.0414	0.0655	0.828	0.029	0.0401
3-qubit model	±0.0152	±0.0012	±0.0020	±0.0129	±0.0009	±0.0014
5-qubit model	0.6637	0.0388	0.0519	0.745	0.0307	0.0389
5-qubit model	±0.0121	±0.0008	±0.0010	±0.0119	±0.0010	±0.0011

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