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Frontiers of Fundamental Physics 14
Cosmological tests of gravity Kazuya Koyama (5319) - Vendredi 18 juillet 2014 12:00 - 12:30

Cosmological tests of gravity Kazuya Koyama

TBA

The discovery of the accelerated expansion of the Universe has come relatively late in our study of the cosmos, but in showing that gravity can act repulsively, it has opened up many new questions about the nature of gravity and what the Universe might contain. Is the acceleration being driven by dark energy? Or is general relativity (GR) itself in error, requiring a modification at large scales to account for the late acceleration? Structure formation in our Universe can be different even if the geometry of the homogeneous and isotropic universe is the same in these two classes of models, offering a possibility to distinguish between them observationally. Non-linear structure formation is complicated by the fifth force that commonly appears in modified gravity models and new techniques are required to analyse it. We will discuss novel methods to test GR on cosmological scales, building on the recent developments of N-body simulations for modified gravity.

Kazuya Koyama (UoP) Chairman: Joe Silk

Physique

Toutes les vidéos de l'évenement Frontiers of Fundamental Physics 14 (22 videos)

00:02:37.05

2014-07-15

08:45 - 09:00 : Opening Roland Triay

00:49:06.23

2014-07-15

09:00 - 09:30 : Personal reflections on two success stories Gabriele Veneziano

00:41:05.86

2014-07-15

09:30 - 10:00 : Status of HEP after the LHC Run 1 Paraskevas Sphicas

00:41:10.71

2014-07-15

10:00 - 10:30 : Discovering dark matter Subir Sarkar

00:31:23.26

2014-07-15

11:00 - 11:30 : LSS with angular cross-correlations: Combining Spectroscopic and ...

00:31:09.70

2014-07-15

11:30 - 12:00 : Dynamics of the Cosmic Web Adi Nusser

00:31:36.22

2014-07-15

12:00 - 12:30 : Distances to supernovae: an efficient probe of dark energy Pierre...

00:59:32.21

2014-07-16

09:30 - 10:00 : Cosmological results from Planck and LSS François Bouchet

00:48:21.51

2014-07-16

10:00 - 10:30 : Status of the BSM scenarios Stefan Pokorski

00:31:42.00

2014-07-16

11:00 - 11:30 : Neutrino pathways to cosmology Jose W.F Valle

00:32:27.11

2014-07-16

11:30 - 12:00 : The top-quark gateway to new physics Fabio Maltoni

00:34:02.22

2014-07-16

12:00 - 12:30 : IceCube and the Discovery of High-Energy Cosmic Neutrinos Francis...

00:38:38.66

2014-07-17

09:00 - 09:30 : Loop Quantum Gravity Carlo Rovelli

00:30:10.40

2014-07-17

09:30 - 10:00 : Investigating inflation and super-high-energy physics with new CM...

00:26:24.57

2014-07-17

10:00 - 10:30 : Origin of Cosmic Rays Vladimir Ptuskin

00:46:20.98

2014-07-17

11:00 - 11:45 : Background independence of GR and in LQG Jerzy Lewandowski

00:44:35.60

2014-07-17

11:45 - 12:30 : High precision gravitational self-force calculations and post-New...

00:35:24.97

2014-07-18

09:00 - 09:30 : Co-development of conceptual understanding and critical attitude:...

00:43:58.29

2014-07-18

10:00 - 10:30 : Current Issues in Galaxy Formation Theory 2014 Joe Silk

00:30:40.09

2014-07-18

11:00 - 11:30 : Dark Energy and Modified Gravity Philippe Brax

00:30:52.59

2014-07-18

11:30 - 12:00 : From DGT to dRGT: a review of "massive gravity" theorie...

00:28:14.77

2014-07-18

12:00 - 12:30 : Cosmological tests of gravity Kazuya Koyama

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