iTHEMS Cosmology Forum 3 - (P)reheating the primordial Universe

iTHEMS Cosmology Forum Workshop is a series of short workshops, each focusing on an emerging topics in cosmology. The target audience is cosmologists, high-energy physicists and astronomers interested in learning about the subject, not just those who have already worked on the topic. The goal of the workshop is to provide working knowledge of the topic and leave dedicated time for discussions to encourage mutual interactions among participants.

The third workshop is devoted to the 'reheating' phase of the early Universe. Reheating bridges the gap between the (almost) universe at the end of cosmic inflation and the thermal state of particles, required for Big-Bang nucleosynthesis, and the events of the hot Big-Bang model as a whole, to unfold. It is expected to proceed in different phases starting with a violent parametric resonant creation of particles, dubbed preheating, followed by a redistribution of energy leading to the thermal state. This phase potentially hosts rich phenomenology such as the formation of topoligical defects e.g. solitons, generation of gravitiational wave, and so on. Yet, the very non-linear nature of reheating makes it notoriously hard to describe the process analytically, and even numerical simulations struggle to follow the whole sequence of events in a given model. Reheating studies have thus yet to reach the degree of compherensiveness and universality that we have for cosmic inflation.

The workshop will be in English.

The workshops are organised by the iTHEMS Cosmology Forum working group, which is the successor of the Dark Matter Working Group at RIKEN iTHEMS.

Important dates:
Feb. 25th - Registration deadline
March 4th - Workshop Day

Invited Speakers:
Kaloian Lozanov - Kavli IPMU
John T. Giblin - Kenyon College
Seishi Enomoto - Yokohama National University

Organisers:
Kohei Hayashi, Nagisa Hiroshima, Derek Inman, Amaury Micheli, Ryo Namba