5 papers
Entanglement-breaking channels are a quantum memory resource
Lucas B. Vieira, Huan-Yu Ku, Costantino Budroni
Entanglement-breaking channels (equivalently, measure-and-prepare channels) are an important class of quantum operations noted for their ability to destroy multipartite spatial qua…
Unveiling quantum steering by quantum-classical uncertainty complementarity
Kuan-Yi Lee, Jhen-Dong Lin, Karel Lemr +5
One of the remarkable aspects of quantum steering is its ability to violate local uncertainty complementarity relations. In this vein of study, various steering witnesses have been…
Observation of Full Hierarchy of Temporal Quantum Correlations with a Superconducting Qubit
Hao-Cheng Weng, Chen-Yeh Wei, Huan-Yu Ku +3
Temporal quantum correlations provide an intriguing way of testing quantumness at the macroscopic level, with a logical hierarchy present among the quantum correlations associated…
Dynamical resource theory of incompatibility preservability
Chung-Yun Hsieh, Benjamin Stratton, Chao-Hsien Wu +1
The uncertainty principle is one of quantum theory's most foundational features. It underpins a quantum phenomenon called measurement incompatibility -- two physical observables of…
Measurement incompatibility cannot be stochastically distilled
Huan-Yu Ku, Chung-Yun Hsieh, Costantino Budroni
We show that the incompatibility of a set of measurements cannot be increased by subjecting them to a filter, namely, by combining them with a device that post-selects the incoming…