Holographic multipartite entanglement dynamics in AdS₃-Vaidya

@misc{ju2026holographic,
  title = {{Holographic multipartite entanglement dynamics in AdS$_3$-Vaidya}},
  author = {Xin-Xiang Ju and Ya-Wen Sun and Yang Zhao and Hao-Ran Zhou},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2608.09304},
  eprint = {2608.09304},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.09304},
}

TY  - UNPB
TI  - Holographic multipartite entanglement dynamics in AdS_3-Vaidya
AU  - Xin-Xiang Ju
AU  - Ya-Wen Sun
AU  - Yang Zhao
AU  - Hao-Ran Zhou
PY  - 2026
DA  - 2026/10/13
PB  - arXiv
DO  - 10.48550/arxiv.2608.09304
UR  - https://arxiv.org/abs/2608.09304
AB  - We study how multipartite entanglement is dynamically reorganized during holographic thermalization following a global quench in AdS_3/CFT_2. We first use the n-partite information (−1)^n I_n to probe collective multipartite entanglement in holographic configurations where the full n-region entanglement wedge is connected while all fewer-party ones are disconnected, thereby excluding fewer-party contributions. The spatial range of multipartite entanglement first expands and then contracts as the system approaches its late-time locally thermal state. Entanglement involving different numbers of parties develops on comparable early-time scales, while the entanglement that involves more parties relaxes more slowly, revealing a transient propagation from shorter to longer spatial distances. We further compute the Markov gap and the genuine tripartite multi-entropy as complementary probes of tripartite entanglement. The Markov gap can remain enhanced after local thermalization, whereas the genuine tripartite multi-entropy undergoes a nonmonotonic evolution and returns to its vacuum value for the adjacent tripartition considered in this work. These results show that a global quench redistributes the entanglement across spatial scales and reorganizes its multipartite structure.
ER  -