2 papers
gr-qc2025
Shear viscosity to entropy density ratio: A powerful tool for gravity theories and strongly coupled fluids
Marilù Chiofalo, Dario Grasso, Stefano Liberati +1
In this perspective review, we present a concise yet multifaceted overview of the pivotal role played by the the shear viscosity to entropy density ratio across various physical co…
gr-qc2025
Gravitational Waves and Black Hole perturbations in Acoustic Analogues
Chiara Coviello, Maria Luisa Chiofalo, Dario Grasso +3
Phonons in Bose-Einstein condensates propagate as massless scalar particles on top of an emergent acoustic metric. This hydrodynamics/gravity analogy can be exploited to realize ac…