Growing Einstein-Rosen Bridge with Multi-partite Entanglement
Abstract
Can quantum entanglement continue to grow even after the entanglement entropies of subsystems have saturated? We address this question using genuine multi-entropy, which probes multi-partite entanglement structure beyond bipartite entanglement. In a two-sided BTZ black hole, this quantity grows linearly with time after every subsystem entropy of a fixed tripartition has saturated, extending the interval in which entanglement detects Einstein-Rosen bridge growth. The result refines the ER=EPR relation by identifying multi-partite structure invisible to ordinary entanglement entropies. Some spin-chain models and the spatially partitioned Sachdev-Ye-Kitaev (SYK) model exhibit distinct transients, while the late-time plateau values in holography, the SYK model, and Haar-random states share a universal behaviour.
Related
- χ‑Geometric Resolution of the Einstein–Rosen Bridge Conjecture (ER=EPR)
- Chaotic dynamics and resonances in Einstein-Rosen standing wave spacetimes
- One pure steered state implies Einstein-Podolsky-Rosen steering for two-qubit entangled states
- Free fermion models with an operator entanglement growing as O(√t)
- When renormalisation remembers: UV/IR mixing as an entanglement bridge
BibTeX
@misc{anegawa2026growing,
title = {{Growing Einstein-Rosen Bridge with Multi-partite Entanglement}},
author = {Takanori Anegawa and Akihiro Miyata and Shota Suzuki and Kotaro Tamaoka},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.18225},
eprint = {2609.18225},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.18225},
}
RIS
TY - UNPB
TI - Growing Einstein-Rosen Bridge with Multi-partite Entanglement
AU - Takanori Anegawa
AU - Akihiro Miyata
AU - Shota Suzuki
AU - Kotaro Tamaoka
PY - 2026
DA - 2026/09/16
PB - arXiv
DO - 10.48550/arxiv.2609.18225
UR - https://arxiv.org/abs/2609.18225
AB - Can quantum entanglement continue to grow even after the entanglement entropies of subsystems have saturated? We address this question using genuine multi-entropy, which probes multi-partite entanglement structure beyond bipartite entanglement. In a two-sided BTZ black hole, this quantity grows linearly with time after every subsystem entropy of a fixed tripartition has saturated, extending the interval in which entanglement detects Einstein-Rosen bridge growth. The result refines the ER=EPR relation by identifying multi-partite structure invisible to ordinary entanglement entropies. Some spin-chain models and the spatially partitioned Sachdev-Ye-Kitaev (SYK) model exhibit distinct transients, while the late-time plateau values in holography, the SYK model, and Haar-random states share a universal behaviour.
ER -