18 July 2023 to 7 September 2023
Europe/Berlin timezone

Tachyonic Instability and Dynamics of Spontaneous Symmetry Breaking

Not scheduled
20m

Description

Project sketch:
In the very early universe, the Higgs could have existed in some unstable regime due to quantum fluctuations during a period of high scale inflation.
The project of this internship will be to study tachyonic instabilities and dynamics of spontaneous symmetry breaking in general, for an arbitrary scalar field, not necessarily the Higgs. This branches to many interesting physics aspects of the scalar field dynamics. One implication is preheating at the end of cosmological inflation and possible observational signatures in gravitational waves. Another distinct aspect is the dynamics of the Higgs at the electroweak phase transition, well after inflation, inside the radiation era, with baryogenesis as an application.

Rough fraction of physics/software work that is expected:
Both analytical work and some numerical calculations using Mathematica/Python.

Special Qualifications:

basic knowledge in quantum field theory, particle physics and cosmology

Field B5: Theory of Elementary Particles
DESY Place Hamburg
DESY Division FH
DESY Group Theory

Primary authors

Aleksandr Chatrchyan (T (Cosmology)) Bibhushan Shakya (T (Cosmology)) Geraldine Servant (T (Cosmology))

Presentation materials

There are no materials yet.