Hydrodynamic Attractor in Viscous Hubble Flow

4 Nov 2019, 17:40
20m
Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Poster Presentation New theoretical developments Poster Session

Speaker

Mr Zhiwei Du (Fudan University)

Description

The gradient expansion solutions to hydrodynamic equations are found to be divergent in many cases. The application of resurgence theory rescues the divergent series solutions and reproduces hydrodynamic attractors in Bjorken flow[1,2] and Gubser flow[3,4]. In this talk, I will first present my result of Borel-resummed hydrodynamics in a different situation, a viscous fluid system that undergoes Hubble flow at a controlled rate. Then the topic of effective viscosity will also be discussed.
[1] M. P. Heller and M. Spalínski, Phys. Rev. Lett. 115, 072501(2015).
[2] P. Romatschke, Phys. Rev. Lett. 120, 012301 (2018).
[3] G. S. Denicol and J. Noronha, Phys. Rev. D 99, 116004 (2019).
[4] A. Behtash et al., Phys. Rev. D 97, 044041 (2018)

Primary author

Mr Zhiwei Du (Fudan University)

Co-authors

Prof. Xu-Guang Huang (Fudan University) Dr Hidetoshi TAYA (Fudan University)

Presentation Materials