25 citations · 28 across the 2 of their papers we have counts for
4 papers · 1 filter
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…
Maximal quantum Fisher information matrix
Yu Chen, Haidong Yuan
We study the existence of the maximal quantum Fisher information matrix in multi-parameter quantum estimation, which bounds the ultimate precision limit. We show that when the maxi…