4 papers
Frustration index of a signed planar graph and the feedback vertex set
Sirui Chen, Jiaao Li, Zhouningxin Wang
A feedback vertex set of a graph is a set of vertices whose deletion leaves a forest. In 2016, Dross, Montassier, and Pinlou conjectured that every planar graph of girth at lea…
Correlation-Enabled Beatings in Two-Dimensional Electronic Spectroscopy
Sirui Chen, Dragomir DavidoviÄ
Long-lived beatings in two-dimensional electronic spectroscopy (2DES) remain difficult to interpret within standard excitonic open-system models, which typically assume factorized…
Frustration indices of signed subcubic graphs
Sirui Chen, Jiaao Li, Zhouningxin Wang
The frustration index of a signed graph is defined as the minimum number of negative edges among all switching-equivalent signatures. This can be regarded as a generalization of th…
Gate-Based Initialization and Fidelity in Correlated Open Quantum Systems
Sirui Chen, Jiahao Chen, Dragomir DavidoviÄ
We present a minimal and general framework for initializing open quantum systems via gate operations, treating system-bath correlations and control dynamics on equal footing. Our p…