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quant-ph2026
Frame phase retrievability and state distinguishability of quantum channels
Deguang Han, Kai Liu
This survey introduces the role of frame phase retrieval in pure-state identification and information preservation by quantum channels. For unit vectors, the lift i…
quant-ph2026
Enhancing Phase Retrievability of Quantum Channels via Interferometric Coupling
Kai Liu, Deguang Han, Omar Nour
Phase retrievability of a quantum channel asks whether pure states can be reconstructed from suitable measurements. In this paper, we study this problem from three complementary vi…