Marek Gluza
presenting based on collaboration with
Spyros Sotiriadis
Per Moosavi
NTU Singapore
Huygens-Fresnel principle
What would it mean Huygens-Fresnel principle is broken?
Wave-front propagation
pinned to light-cone
Wave-front leaking into light-cone
Is Huygens-Fresnel principle valid for quantum fluids?
The light-cone can be curved
Our contribution:
Is Huygens-Fresnel principle valid for quantum fluids?
hydrodynamics
Local signals stay local
Local signals propagate
with constant velocity
Local signals return
to the origin
#Simple
System
Piston
Bath
Bath with excitations
System cooled down
Local signals stay local?
Local signals propagate
with constant velocity?
Local signals return
to the origin?
#Complex
hydrodynamics
Huygens-Fresnel principle
Huygens-Fresnel principle broken
Huygens-Fresnel principle
Huygens-Fresnel principle broken
Marek Gluza
Spyros Sotiriadis
Per Moosavi
NTU Singapore