Time-like Gravitational Formfactors and Shear Viscosity
High Energy Physics - Phenomenology
2023-01-18 v1 General Relativity and Quantum Cosmology
Nuclear Theory
Abstract
The gravitational formfactor similar to shear viscosity is identified. In the time-like region it corresponds to the contribution of exotic hybrid meson. The exotic quantum numbers may be considered as a counterpart of dissipation in crossed channel. The ratio of viscosity to entropy density is estimated. The smallness due to holographic bound corresponds to the relative smallness of coupling of hybrid meson and the intrinsic transverse momentum, being the dynamical counterpart of temperature.
Keywords
Cite
@article{arxiv.2204.09742,
title = {Time-like Gravitational Formfactors and Shear Viscosity},
author = {Oleg Teryaev},
journal= {arXiv preprint arXiv:2204.09742},
year = {2023}
}
Comments
4 pages, no figures, parallel session keynote talk at the 24th International Spin Symposium (SPIN2021)