9 citations · 9 across the 1 of their papers we have counts for
3 papers
quant-ph2020
Local Unitary Invariants of Quantum States
Meiyu Cui, Jingmei Chang, Ming-Jing Zhao +2
We study the equivalence of mixed states under local unitary transformations. First we express quantum states in Bloch representation. Then based on the coefficient matrices, some…
quant-ph2020
Trade-off relations on CHSH tests for multi-qubit pure states
Meiyu Cui, Xiaofen Huang, Tinggui Zhang
We study the trade-off relations on the maximal violation of CHSH tests for the multi-qubit pure states. Firstly, according to the classification of 3-qubit pure states under stoch…
quant-ph2020★ 9 cited
Separability criteria based on Heisenberg-Weyl representation of density matrices
Jingmei Chang, Meiyu Cui, Tinggui Zhang +1
Separability is an important problem in theory of quantum entanglement. By using the Bloch representation of quantum states in terms of the Heisenberg-Weyl observable basis, we pre…