22 citations · 65 across the 5 of their papers we have counts for
Showing 2022Show all
3 papers · 1 filter
quant-ph2022★ 14 cited
Quantifying coherence in terms of Fisher information
Deng-hui Yu, Chang-shui Yu
In quantum metrology, the parameter estimation accuracy is bounded by quantum Fisher information. In this paper, we present coherence measures in terms of (quantum) Fisher informat…
quant-ph2022★ 2 cited
The best approximation of a given qubit state with the limited pure-state set
Li-qiang Zhang, Deng-hui Yu, Chang-shui Yu
The preparation of quantum states lies at the foundation in the quantum information processing. The convex mixing of some existing quantum states is one of the effective candidate.…
quant-ph2022★ 5 cited
The optimal approximation of qubit states with limited quantum states
Li-qiang Zhang, Deng-hui Yu, Chang-shui Yu
Measuring the closest distance between two states is an alternative and significant approach in the resource quantification, which is the core task in the resource theory. Quite li…