Date: 8th September 2022, 10:00am
Speaker: Hongbao Zhang 张宏宝
Affiliation: Beijing Normal University
Tencent/VooV Meeting ID: 973-6909-6865
Online Meeting Link: https://meeting.tencent.com/dm/ZGVDkboF0pFP
The conventional approach to the dissipative turbulence is phenomenological. Compared to this, holographic duality provides a first principles description of dissipation in vortex dynamics in terms of excitations absorbed by the bulk black holes. In this talk, I will report how to select a proper phenomenological effective theory to model the dissipative quantum turbulence through the lens of holography. In particular, we argue that Landau’s model rather than the much more widely used one (abbreviated as KDGP) is the appropriate one to simulate the vortex dynamics at fully non-linear level. In passing, we also point out KDGP is plagued by its pathological dispersion relation, which has never been noticed before.