1-5 July 2019
Faculty of Physics, University of Warsaw
Europe/Warsaw timezone

Holographic Views of the Emergent Dark Universe

Not scheduled
20m
Faculty of Physics, University of Warsaw

Faculty of Physics, University of Warsaw

conference hall 0.03, Faculty of Physics, University of Warsaw ul. Pasteura 5, 02-093 Warszawa Poland
Poster session

Speaker

Dr Yun-Long Zhang (YITP, Kyoto University)

Description

We study a model of the emergent dark universe, which lives on the time-like hypersurface in a five-dimensional bulk spacetime. The holographic fluid is assumed to play the role of the dark sector, mainly including the dark energy and apparent dark matter. Based on the modified Friedmann equations, we present a Markov-Chain-Monte-Carlo analysis with the observational data, including type Ia Supernova and the direct measurement of the Hubble constant. We obtain a good fitting result and the matter component turns out to be small enough, which matches well with our theoretical assumption. The effective potential of the model with a dynamical scalar field is reconstructed and the parameters in the swampland criteria are also extracted. [Refs. 1712.09326 & 1812.11105]

Primary author

Dr Yun-Long Zhang (YITP, Kyoto University)

Co-authors

Presentation Materials

There are no materials yet.