Speaker
Xin-Meng Wu
(Shanghai Jiao Tong University)
Description
We derive the Schwinger-Keldysh effective field theories for diffusion including
the lowest non-hydrodynamic degree of freedom from holographic Gubser-Rocha
systems. At low temperature the dynamical non-hydrodynamic mode could be either an IR mode or a slow mode, which is related to IR quantum critical excitations
or encodes the information of all energy scales. This additional dynamical vector
mode could be viewed as an ultraviolet sector of the diffusive hydrodynamic theory.
We construct two different effective actions for each case and discuss their physical
properties. In particular we show that the Kubo-Martin-Schwinger symmetry is
preserved.
Authors
Prof.
Yan Liu
(Beihang University)
Prof.
Ya-Wen Sun
(University of Chinese Academy of Sciences)
Xin-Meng Wu
(Shanghai Jiao Tong University)
