Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session B11: Early Universe and Dark Energy
10:45 AM–12:33 PM,
Saturday, April 13, 2019
Sheraton
Room: Governor's Square 17
Sponsoring
Unit:
DAP
Abstract: B11.00008 : Minimal Coupling Between Dark Matter and Dark Energy
12:09 PM–12:21 PM
View Presentation Abstract
Presenter:
Kevin Ludwick
(LaGrange College)
Author:
Kevin Ludwick
(LaGrange College)
biggest mysteries of modern cosmology, and
our understanding of their fundamental nature
is incomplete. Many parameterizations of
couplings between the two have been studied
in the literature, and observational data
from the growth of perturbations can constrain
these parameterizations. Dark matter and
dark energy interact gravitationally over
long distances, so they should at least be
coupled via the graviton. Assuming standard
general relativity with no explicit coupling
between dark energy and dark matter fields
in the Lagrangian, we calculate the gravitational
interaction cross section and examine any
observational implications that may follow.
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