Sep 12–13, 2024
Perimeter Institute for Theoretical Physics
America/Toronto timezone

Probing fundamental physics using compact objects

Sep 13, 2024, 2:20 p.m.
5m
PI/3-394 - Skyroom (Perimeter Institute for Theoretical Physics)

PI/3-394 - Skyroom

Perimeter Institute for Theoretical Physics

60
4+1 minute talk (PSI & PhD Students) Lightning Talks

Speaker

Ms Eleni Anna Kolonia (Perimeter Institute)

Description

It is well known that alternative theories to the Standard Model allow
fundamental constants, such as the fine structure constant, to vary in
spacetime. One way to investigate these variations is to utilize the Mass-
Radius relation of compact objects, which is inherently affected by α
variations. As such, we initially construct the model of a polytropic
white dwarf, which we perturb by adding the α variations for various
GUT models. We continue our analysis with neutron stars, investigating
both polytropic and more realistic equations of state. We outline how
future observations might distinguish between extensions of the Standard
Model.

Keywords varying couplings, fine structure constant, neutron stars, white dwarfs
Submitter's Email Address [email protected]
Recording Permission YES
Virtual Audience Permission YES
Photography Permission YES

Primary authors

Mr C.J.A.P. Martins (CAUP) Ms Eleni Anna Kolonia (Perimeter Institute) Mr Konstantinos Gourgouliatos (University of Patras)

Presentation materials

External references