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quant-ph2026
Optimization landscapes of variational quantum algorithms
Xiaozhen Ge, Shuming Cheng, Guofeng Zhang +1
Optimization plays a central role in variational quantum algorithms, where the objective function typically takes the form $F(\boldsymbolθ)= \sum_{m=1}^{M} f_m \left(\mathrm{Tr}[U(…
quant-ph2024
The polygon relation and subadditivity of entropic measures for discrete and continuous multipartite entanglement
Lijun Liu, Xiaozhen Ge, Shuming Cheng
In a recent work [Ge {\it et al.}, arXiv: 2312. 17496 (2023)], we have derived the polygon relation of bipartite entanglement measures that is useful to reveal the entanglement pro…
quant-ph2023
Faithful geometric measures for genuine tripartite entanglement
Xiaozhen Ge, Lijun Liu, Yong Wang +4
We present a faithful geometric picture for genuine tripartite entanglement of discrete, continuous, and hybrid quantum systems. We first find that the triangle relation $\mathcal{…