Possible connection between the location of the cutoff in the cosmic microwave background spectrum and the equation of state of dark energy.
We investigate a possible connection between the suppression of the power at low multipoles in the cosmic microwave background (CMB) spectrum and the late time acceleration. We show that, assuming a cosmic IR/UV duality between the UV cutoff and a global infrared cutoff given by the size of the future event horizon, the equation of state of the dark energy can be related to the apparent cutoff in the CMB spectrum. The present limits on the equation of state of dark energy are shown to imply an IR cutoff in the CMB multipole interval of 9>l>8.5.
Enqvist
Kari
K
Department of Physical Sciences, University of Helsinki, 00014 Helsinki, Finland. kari.enqvist@helsinki.fi
Sloth
Martin S
MS