6 papers
Binary superfluids: Low-energy properties and dissipative processes from spontaneous emission of massive phonons
Silvia Trabucco, Luca Lepori, Maria Luisa Chiofalo +1
We discuss the low-energy properties of binary superfluids with density-dependent interactions. Adding an intra-species coupling that induces an explicit soft symmetry-breaking, we…
A diagrammatic approach to correlation functions in superfluids
Alessia Biondi, Maria Luisa Chiofalo, Massimo Mannarelli +1
Renaud Parentani has given a vast contribution to the development of gravitational analogue models as tools to explore various important aspects of general relativity and of quantu…
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…
Superfluid dark stars
Lorenzo Cipriani, Massimo Mannarelli, Fabrizio Nesti +1
We present a superfluid dark star model consisting of relativistic dark bosons with two-body self-interaction. The obtained masses, radii, and tidal deformability depend in a simpl…
Exploring pulsar glitches with dipolar supersolids
Thomas Bland, Francesca Ferlaino, Massimo Mannarelli +2
Glitches are sudden spin-up events that interrupt the gradual spin-down of rotating neutron stars. They are believed to arise from the rapid unpinning of vortices in the neutron st…
Dissipative processes at the acoustic horizon
Maria Luisa Chiofalo, Dario Grasso, Massimo Mannarelli +1
A transonic fluid flow generates an acoustic hole that is the hydrodynamic analogue of a gravitational black hole. Acoustic holes emit a detectable thermal radiation of phonons at…