Topology-dependent relativistic degradation of multipartite entanglement
- 1Liaoning Normal University
- 2Xiangtan University
Abstract
The influence of relativistic motion on quantum entanglement is commonly attributed to acceleration-induced thermal noise. Here we show that, for asymmetric multipartite states, the topology of entanglement can become equally important. Considering a three-qubit Star state in the Unruh–DeWitt detector framework, we compare two inequivalent acceleration configurations in which either the central or a peripheral qubit undergoes uniform acceleration. We demonstrate that these physically equivalent accelerations lead to qualitatively different entanglement dynamics: acceleration of a peripheral qubit induces a revival of one-tangle that is absent when the central qubit accelerates, whereas genuine tripartite entanglement decays monotonically but with markedly different robustness. Our results uncover a topology-dependent mechanism for relativistic entanglement degradation, showing that the response of multipartite quantum correlations is determined jointly by Unruh thermalization and the structural role of the accelerated subsystem. This work identifies asymmetric quantum networks as a distinct platform for controlling relativistic quantum resources.
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BibTeX
@article{wu2026topologydependent,
title = {{Topology-dependent relativistic degradation of multipartite entanglement}},
author = {Shu-Min Wu and Si-Han Shang and Xu Han and Hui-Chen Yang and Qianqian Liu},
journal = {The European Physical Journal C},
year = {2026},
month = oct,
doi = {10.1140/epjc/s10052-026-16401-9},
url = {https://link.springer.com/article/10.1140/epjc/s10052-026-16401-9},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Topology-dependent relativistic degradation of multipartite entanglement
AU - Shu-Min Wu
AU - Si-Han Shang
AU - Xu Han
AU - Hui-Chen Yang
AU - Qianqian Liu
PY - 2026
DA - 2026/10/19
JO - The European Physical Journal C
DO - 10.1140/epjc/s10052-026-16401-9
UR - https://link.springer.com/article/10.1140/epjc/s10052-026-16401-9
AB - The influence of relativistic motion on quantum entanglement is commonly attributed to acceleration-induced thermal noise. Here we show that, for asymmetric multipartite states, the topology of entanglement can become equally important. Considering a three-qubit Star state in the Unruh–DeWitt detector framework, we compare two inequivalent acceleration configurations in which either the central or a peripheral qubit undergoes uniform acceleration. We demonstrate that these physically equivalent accelerations lead to qualitatively different entanglement dynamics: acceleration of a peripheral qubit induces a revival of one-tangle that is absent when the central qubit accelerates, whereas genuine tripartite entanglement decays monotonically but with markedly different robustness. Our results uncover a topology-dependent mechanism for relativistic entanglement degradation, showing that the response of multipartite quantum correlations is determined jointly by Unruh thermalization and the structural role of the accelerated subsystem. This work identifies asymmetric quantum networks as a distinct platform for controlling relativistic quantum resources.
SN - 1434-6044
SN - 1434-6052
ER -