11-15 July 2016
University of Stavanger
Europe/Oslo timezone

Non-equilibrium dynamics of inhomogeneous quantum fields

12 Jul 2016, 14:00
30m
Ø-130 (University of Stavanger)

Ø-130

University of Stavanger

Arne Rettedal building

Speaker

Thomas Garratt (Julius-Maximilians Universitaet Wuerzburg)

Description

The dynamics of inhomogeneous quantum fields out of equilibrium are especially relevant for the study of first-order phase transitions. It is our aim to calculate how critical bubbles of the new phase -that form in such a process- propagate for different quantum field theories. The Electroweak phase transition in the early universe is of particular interest, since Baryogenesis can potentially explain the matter-antimatter asymmetry in the universe for fitting dynamical properties of the phase transition and the bubble collisions result in gravitational waves.
To simulate the bubble dynamics we have developed a program that solves the non-equilibrium equations of motion in the so called 2PI-Formalism. As a starting point we have simulated the dynamics of bubbles in a scalar $\lambda_{4} \phi^{4} + \lambda_{6} \phi^{6}$ toy model in (1+1)-dimensions.

Primary author

Thomas Garratt (Julius-Maximilians Universitaet Wuerzburg)

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