English

Entanglement Wedge Minimum Cross-Section for Holographic Aether Gravity

High Energy Physics - Theory 2022-09-07 v2 General Relativity and Quantum Cosmology

Abstract

We study the entanglement wedge cross-section (EWCS) in holographic Aether gravity theory, a gravity theory with Lorentz symmetry violation while keeping the general covariance intact. We find that only a limited parameter space is allowed to obtain a black brane with positive Hawking temperature. Subject to these allowed parameter regions, we find that the EWCS could exhibit non-monotonic behaviors with system parameters. Meanwhile, the holographic entanglement entropy (HEE), and the corresponding mutual information (MI), can only exhibit monotonic behaviors. These phenomena suggest that the EWCS could capture much more rich content of the entanglement than that of the HEE and the MI. The role of the Lorentz violation in determining the behaviors of quantum information-related quantities is also analyzed.

Keywords

Cite

@article{arxiv.2109.03733,
  title  = {Entanglement Wedge Minimum Cross-Section for Holographic Aether Gravity},
  author = {Chong-Ye Chen and Wei Xiong and Chao Niu and Cheng-Yong Zhang and Peng Liu},
  journal= {arXiv preprint arXiv:2109.03733},
  year   = {2022}
}

Comments

23 pages, 16 figures; refs added, writing improved

R2 v1 2026-06-24T05:47:41.152Z