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quant-ph2026
Experimental Observation of Anomalous Complementary Weak Values from Correlated Pairwise Two-State Vectors
Qian Xie, Liang Xu, Lijian Zhang
Weak values (WVs) arise from weak measurements performed within a time-symmetric formulation of quantum mechanics, where a system is both pre- and post-selected. Anomalous WVs that…
quant-ph2026
Experimental Tabletop Petz recovery of a photonic qubit
Hui Li, Jinyan Chen, Yue Pan +4
The quantum information lost in open evolutions cannot be fully recovered, but partial recovery is possible. The Petz recovery map guarantees almost optimal recovery, notably if th…