TY  - JOUR
AU  - Moretti, F.
AU  - Bombacigno, F.
AU  - Montani, G.
PY  - 2020
DA  - 2020//
TI  - Gravitational Landau damping for massive scalar modes
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 1203
EP  - 9pp
VL  - 80
IS  - 12
PB  - Springer
AB  - We establish the possibility of Landau damping for gravitational scalar waves which propagate in a non-collisional gas of particles. In particular, under the hypothesis of homogeneity and isotropy, we describe the medium at the equilibrium with a Juttner-Maxwell distribution, and we analytically determine the damping rate from the Vlasov equation. We find that damping occurs only if the phase velocity of the wave is subluminal throughout the propagation within the medium. Finally, we investigate relativistic media in cosmological settings by adopting numerical techniques.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2005.08010
UR  - https://doi.org/10.1140/epjc/s10052-020-08769-z
DO  - 10.1140/epjc/s10052-020-08769-z
LA  - English
N1  - WOS:000615196900004
ID  - Moretti_etal2020
ER  -