Conveners
Phase Transitions 5
- Chris Gordon (University of Canterbury (NZ))
The experimental revolution unleashed by the discovery of gravitational waves will unfold over the coming decades. To maximize the discovery potential, a theoretical understanding of quantum matter out of equilibrium is essential. Addressing this regime with conventional methods is extremely challenging. Holography, a theoretical framework originating from string theory, maps this problem to...
Among all the possible candidates for Dark Matter, one appealing example is a population of Primordial Black Holes, which could have been borne by various processes in the early stages of the Universe. In this talk, I will investigate the formation of such objects as the result of the collapse of energy density fluctuations originating from supercooled first-order phase transitions. I will...
In this talk I will discuss gravitational waves from supercooled cosmological first-order phase transitions. If such a transition is followed by inefficient reheating, the evolution history of the universe is modified by a period of early matter domination. This leaves an imprint on the predicted gravitational-wave spectra. Using Fisher analysis we show the parameter space in reach of upcoming...
An early period of matter domination that suddenly transitions into radiation results in a striking gravitational wave signature. Assuming a given form for the initial power spectrum of curvature fluctuations, one can then do the work to distinguish different sources of early matter domination from features in the spectrum. We first do a model independent analysis where we reduce the features...
