Holographic Mutual Information of Two Disjoint Spheres
Abstract
We study quantum corrections to holographic mutual information for two disjoint spheres at a large separation by using the operator product expansion of the twist field. In the large separation limit, the holographic mutual information is vanishing at the semiclassical order, but receive quantum corrections from the fluctuations. We show that the leading contributions from the quantum fluctuations take universal forms as suggested from the boundary CFT. We find the universal behavior for the scalar, the vector, the tensor and the fermionic fields by treating these fields as free fields propagating in the fixed background and by using the 1/n prescription. In particular, for the fields with gauge symmetries, including the massless vector boson and massless graviton, we find that the gauge parts in the propagators play indispensable role in reading the leading order corrections to the bulk mutual information.
Keywords
Cite
@article{arxiv.1712.05131,
title = {Holographic Mutual Information of Two Disjoint Spheres},
author = {Bin Chen and Zhong-Ying Fan and Wen-Ming Li and Cheng-Yong Zhang},
journal= {arXiv preprint arXiv:1712.05131},
year = {2018}
}
Comments
37 pages, 1 figure; significant revisions, corrected the discussions on the computations of the mutual information in CFT, conclusions unchanged