Login

spring workshop on gravity and cosmology

16–17 May 2019
University of Warsaw
Europe/Zurich timezone

Session

Inflation and PBH (II)

16 May 2019, 14:30
Faculty of Physics

Faculty of Physics

University of Warsaw

Conveners

Inflation and PBH (II): Inflation and PBH (II)

  • Chunshan Lin

Presentation materials

There are no materials yet.

  1. 6. Stochastic inflation beyond slow roll
    David Wands (ICG)
    16/05/2019, 14:30

    I will discuss how to apply stochastic formalism for inflation beyond the usual slow-roll approximation. We verify that the assumptions on which the stochastic formalism relies still hold even far from the slow-roll attractor. In particular this requires the separate universe assumption to hold for long-wavelength perturbations of the scalar field beyond slow roll. In general, there is a gauge...

    Go to contribution page
  2. 7. Stochastic Inflation and Primordial Black Holes
    Vincent Vennin (APC Paris)
    16/05/2019, 15:15

    Primordial black holes can be seeded by large cosmological fluctuations produced during inflation. This happens if the potential for inflation is sufficiently flat in some regions. However, in such regions, the dynamics of the inflaton is dominated by quantum diffusion rather than by classical slow roll. This implies that the standard method to calculate the amplitude of the fluctuations,...

    Go to contribution page
  3. 9. Testing PBHs by gravitational-wave observations
    須山輝明 Suyama
    16/05/2019, 16:30

    Given a possibility that black holes detected by LIGO/Virgo are PBHs, a next direction we should proceed is to propose ideas for testing the PBH hypothesis. I will introduce my recent proposal that makes use of the mass distribution as well as other proposals.

    Go to contribution page
  4. 11. free discussion
    16/05/2019, 17:15
Building timetable...