48 citations · 171 across the 15 of their papers we have counts for
4 papers · 1 filter
Proof-of-principle experimental demonstration of quantum gate verification
Maolin Luo, Xiaoqian Zhang, Xiaoqi Zhou
To employ a quantum device, the performance of the quantum gates in the device needs to be evaluated first. Since the dimensionality of a quantum gate grows exponentially with the…
Non-locality sharing for a three-qubit system via multilateral sequential measurements
Changliang Ren, Xiaowei Liu, Wenlin Hou +2
Non-locality sharing for a three-qubit system via multilateral sequential measurements was deeply discussed. Different from 2-qubit case, it is shown that non-locality sharing betw…
Direct Fidelity Estimation of Quantum States using Machine Learning
Xiaoqian Zhang, Maolin Luo, Zhaodi Wen +4
In almost all quantum applications, one of the key steps is to verify that the fidelity of the prepared quantum state meets expectations. In this Letter, we propose a new approach…
Direct measurement of density-matrix elements using a phase-shifting technique Tianfeng
Tianfeng Feng, Changliang Ren, Xiaoqi Zhou
A direct measurement protocol allows reconstructing specific elements of the density matrix of a quantum state without using quantum state tomography. However, the direct measureme…