2017/11/27 by Shingo Takeuchi, Takeuchi, Shingo
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.1711.09642
Withdrawn because eq.(61) which should be a constant depends on $τ_0$ and analysis is considered wrong
arxiv created 2019/03/04 · arxiv updated 2020/07/14
In a system with a Bjorken-flow (BF), considering the inside of a BF as a subsystem for the reason explained in the body text, we compute entanglement entropy appearing in our side holographically . BF consists of many concentrically scattering quark-gluon plasmas created by colliding two masses of hadrons. Our BF is defined in the boundary space in an asymptoticly five-dimensional Anti de-Sitter space with a growing Schwartzshild black hole. %, where its Hawking temperature diminishes with time. In our analysis we can get a parameter prescribing our bulk space-time in terms of the boundary QCD's variables. Using this, we find that the η/s dips from 1/4π just for a moment before asymptoting to 1/4π at infinitely large time. Since 1/4π is the KSS bound, this result is intriguing as an example of violation of the KSS bound.