Zekai Chen

DCAP

2021

User response prediction, which aims to predict the probability that a user will provide a predefined positive response in a given context such as clicking on an ad or purchasing an item, is crucial to …

Variational Principle for Optimal Quantum Controls in Quantum Metrology

2022 · Physical Review Letters

We develop a variational principle to determine the quantum controls and initial state that optimizes the quantum Fisher information, the quantity characterizing the precision in quantum metrology. When the set of available controls is limited, …