PIRSA:20120015

Dynamics and observational traces of cosmological ultra-supercooled phase transitions

Jinno, R. (2020). Dynamics and observational traces of cosmological ultra-supercooled phase transitions. Perimeter Institute. https://pirsa.org/20120015

Jinno, Ryusuke. Dynamics and observational traces of cosmological ultra-supercooled phase transitions. Perimeter Institute, Dec. 11, 2020, https://pirsa.org/20120015 

          @misc{ pirsa_PIRSA:20120015,
            doi = {10.48660/20120015},
            url = {https://pirsa.org/20120015},
            author = {Jinno, Ryusuke},
            keywords = {Particle Physics},
            language = {en},
            title = {Dynamics and observational traces of cosmological ultra-supercooled phase transitions},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {dec},
            note = {PIRSA:20120015 see, \url{https://pirsa.org}}
          }

Ryusuke Jinno

Deutsches Elektronen-Synchrotron (DESY)

Talk number
PIRSA:20120015
Collection
Talk Type
Subject
Abstract

In recent years, there has been growing interest in cosmological first-order phase transitions in view of gravitational wave observations with space interferometers such as LISA. However, there is only limited understanding on the bubble dynamics and the gravitational wave signals arising from ultra-supercooled transitions (in which the released energy dominates the plasma energy, i.e., near-vacuum transitions), due to the highly relativistic nature of the transition.

In this talk, I introduce some approaches to understand the dynamics and the gravitational wave signals of ultra-supercooled first-order phase transitions:

(1) These transitions proceed with the propagation and collision of highly relativistic fluid profiles involving shock waves. I introduce an approach to construct an effective description of the propagation of such relativistic profiles (1905.00899).

(2) I present an approach to extend the existing model of gravitational wave production and calculate the gravitational wave signals analytically (1707.03111).