25 citations · 77 across the 6 of their papers we have counts for
7 papers
Information geometry under hierarchical quantum measurement
Hongzhen Chen, Yu Chen, Haidong Yuan
In most quantum technologies, measurements need to be performed on the parametrized quantum states to transform the quantum information to classical information. The measurements,…
Incompatibility measures in multi-parameter quantum estimation under hierarchical quantum measurements
Hongzhen Chen, Yu Chen, Haidong Yuan
The incompatibility of the measurements constraints the achievable precisions in multi-parameter quantum estimation. Understanding the tradeoff induced by such incompatibility is a…
Experimental Adiabatic Quantum Metrology with the Heisenberg scaling
Ran Liu, Yu Chen, Min Jiang +6
The critical quantum metrology, which exploits the quantum phase transition for high precision measurement, has gained increasing attention recently. The critical quantum metrology…
Fluctuation-enhanced quantum metrology
Yu Chen, Hongzhen Chen, Jing Liu +2
The main obstacle for practical quantum technology is the noise, which can induce the decoherence and destroy the potential quantum advantages. The fluctuation of a field, which in…
Is entanglement necessary in the reservoir input?
Zibo Miao, Yu Chen, Haidong Yuan
In this paper, we continue our investigation on controlling the state of a quantum harmonic oscillator, by coupling it to a reservoir composed of a sequence of qubits. Specifically…
Cooperation between coherent control and noises in quantum metrology
Yu Chen, Zibo Miao, Haidong Yuan
In this paper we study the cooperation between coherent control and noises in open spin systems, aiming to demonstrate that such cooperation can provide new possibilities for param…