Entangling Fractals
Abstract
We use the Heat Kernel method to calculate the Entanglement Entropy for a given entangling region on a fractal. The leading divergent term of the entropy is obtained as a function of the fractal dimension as well as the walk dimension. The power of the UV cut-off parameter is (generally) a fractional number which indeed is a certain combination of these two indices. This exponent is known as the spectral dimension. We show that there is a novel periodic oscillatory behavior in the expression of entropy which has root in the complex dimension of the fractal. We finally indicate that the Holographic calculation in a certain hyper-scaling violating bulk geometry yields the same leading term for the entanglement entropy, if one identifies the effective dimension of the hyper-scaling violating theory with the spectral dimension of the fractal. We provide more supports with comparing the behavior of the thermal entropy in terms of the temperature computed for a fractal geometry and a hyper-scaling violating theory as well.
Cite
@article{arxiv.1511.01330,
title = {Entangling Fractals},
author = {Amin Faraji Astaneh},
journal= {arXiv preprint arXiv:1511.01330},
year = {2016}
}
Comments
4 pages, Typos fixed, References and comments added