Jornadas Científicas IFIC, L5: Gravity and the Dark Universe. Gravitational Waves and Black Holes

jueves 28 abr. 2022 9:30 → 13:30 Europe/Madrid

1001-Primera-1-1-1 - Paterna. Seminario (Universe)

1001-Primera-1-1-1 - Paterna. Seminario

Universe

Descripción

We will present IFIC's recent and prospective work related to L5 - Gravity and the Dark Universe: Gravitational Waves and Black Holes

Daniel G. Figueroa

daniel.figueroa@cern.ch

- 9:30 → 9:35
  
  Opening 5m
  
  Welcoming words by the IFIC Director
  
  Ponente: Nuria Rius (IFIC, Valencia University-CSIC)
- 9:35 → 10:00
  
  Detection of gravitational waves with axion haloscopes 25m
  
  Gravitational waves generate oscillating electromagnetic effects in the vicinity of external electric and magnetic fields. I will discuss this phenomenon with a particular focus on reinterpreting the results of axion haloscopes based on lumped-element detectors, which probe gravitational waves in the 100 kHz-100 MHz range. I will show that the DMRadio program will have the potential to discover not only the QCD axion but also exotic sources of gravitational waves. In the final part of my talk, I will discuss the corresponding detection prospects of primordial-black-hole binaries.
  
  Ponente: Camilo Garcia Cely (IFIC, Valencia University-CSIC)
  
  L5_CamiloGarciaCely.pdf
- 10:00 → 10:25
  
  Probing dark Universe with gravitational Landau damping. Part I: Theoretical setting 25m
  
  We show as scalar polarizations of the gravitational wave spectrum can interact non-collisionally with astrophysical media, once the notions of gravitational plasma and kinematic Landau damping are properly formulated in modified theories of gravity. We analytically determine the damping rate of the scalar mode and we discuss the physical properties of the traversed medium in order such a phenomenon to occur.
  
  Ponente: Flavio Bombacigno (IFIC, Valencia University-CSIC)
  
  IFIC28apr22.pdf
- 10:25 → 10:45
  
  Break 20m
- 10:45 → 11:10
  
  Probing dark universe with gravitational Landau damping. Part II: numerics and extension to the beam-plasma system 25m
  
  We present a numerical method able to treat the case of large thermal velocity of the background distribution in the integration of the plasma dielectric function previously introduced. We exploit this technique to give quantitative estimates of the expected damping for sub-horizon modes interacting with the cosmological dark matter medium in the early Universe. Then, we extend our analysis by considering the case of a gravitational beam-plasma system. We demonstrate the possibility of inverse Landau damping, in which the energy is conveyed from the medium to the wave, resulting in an amplitude growth for the latter.
  
  Ponente: Fabio Moretti (IFIC, Valencia University-CSIC)
  
  IFIC 28-04-2022.pdf
- 11:10 → 11:35
  
  CosmoLattice: simulating the early universe in a box 25m
  
  In my talk I will present CosmoLattice: a new public code for lattice simulations of classical field theories in an expanding universe. The code is capable of simulating scalars, gauge fields and gravitational waves, and is currently being used in the study of relevant early universe scenarios. I will discuss its basic features and future updates, and explain how we can use it to characterize the post-inflationary reheating history.
  
  Ponente: Francisco Torrenti (Basel University, Switzerland)
  
  L5ific-indicovers.pdf
- 11:35 → 12:00
  
  Summary & Perspective 25m
  
  Ponente: Daniel G. Figueroa (IFIC, Valencia University-CSIC)
  
  IFIC.pdf
- 12:00 → 13:00
  
  Discussion 1h
  
  Ponente: multiple speakers

Jornadas Científicas IFIC, L5: Gravity and the Dark Universe. Gravitational Waves and Black Holes

1001-Primera-1-1-1 - Paterna. Seminario

Universe

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