Svenska Fysikersamfundets fysikdagar 2014

Session

Sektionsmöte

101

9 Oct 2014, 13:00

AlbaNova, Stockholm

63. Cosmological tests of a bivalent tachyonic dark energy scalar field model

Zoltán Keresztes (Szeged)

09/10/2014, 13:00

We investigate a Friedmann universe filled with tachyonic scalar field which can behave as dark energy in a period of the evolution. The universe exhibits a bivalent future: depending on initial parameters can run either into a de Sitter exponential expansion or into a traversable future soft singularity followed by a contraction phase. We also include in the model radiation, baryonic matter...

64. Dark energy from cosmological fluids obeying a Shan-Chen nonideal equation of state

Daniele Gregoris (Stockholm)

09/10/2014, 13:50

An original cosmological model based on the Friedmann metric and on a fluid obeying the nonideal equation of state with asymptotic freedom of Shan-Chen is presented. After reviewing the most important physical features of the above mentioned equation of state, I will show that our model for the universe evolves towards a dark energy dominated phase starting from a radiation dominated epoch...

65. Classics Illustrated: Limits of Spacetimes

Emma Jakobsson (Stockholm)

09/10/2014, 14:25

66. XXI Century singularity theorems

José Senovilla (Bilbao)

09/10/2014, 15:15

67. Finding Petrov Type III Robinson-Trautman Metrics with the GHP Formalism

Robin Ekman (Umeå)

09/10/2014, 16:05

68. How to Handle the Equivalence Problem in General Relativity

Jan Åman (Stockholm)

09/10/2014, 16:40

69. Society matters with election of new board

09/10/2014, 17:15