178 citations · 184 across the 9 of their papers we have counts for
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quant-ph2017
Variance-based uncertainty relation for incompatible observers
Xiao Zheng, Guo-Feng Zhang
Based on mixedness definition as M=1-tr(\r{ho}^2), we obtain a new variance-based uncertainty equality along with an inequality for Hermitian operators of a single-qubit system. Th…
quant-ph2017★ 178 cited
The effects of mixedness and entanglement on the properties of the entropic uncertainty in Heisenberg model with Dzyaloshinski-Moriya interaction
Xiao Zheng, Guo-Feng Zhang
The effects of mixedness and entanglement on the lower bound and tightness of the entropic uncertainty in the Heisenberg model with Dzyaloshinski-Moriya (DM) interaction have been…
quant-ph2017★ 1 cited
The effects of different quantum feedback types on the tightness of the variance-based uncertainty
Xiao Zheng, Guo-Feng Zhang
The effect of the quantum feedback on the tightness of the variance-based uncertainty, the possibility of using quantum feedback to prepare the state with a better tightness, and t…