Kai Liu

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20232026

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Showing 2023 · quant-phShow all

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quant-ph2023

Phase retrievability of frames and quantum channels

Kai Liu, Deguang Han

A phase retrievable quantum channel refers to a quantum channel $Φ : B (H_{A}) \to B (H_{B})$ such that there is a positive operator valued measure (POVM) ${F_{j}}$ in $B (H_{B})$ and $\{…

quant-ph2023

Zero Error Correctibility and Phase Retrievability for Twirling Channels

Kai Liu, Deguang Han

A twirling channel is a quantum channel induced by a continuous unitary representation $π = \sum_{i}^{\oplus} m_{i} π_{i}$ , where $π_{i}$ are inequivalent irreducible representations. Moti…