A CMB/Dark Energy Cosmic Duality
Kari Enqvist, Martin S. Sloth
TL;DR
This paper explores a theoretical link between the suppression of low multipoles in the CMB spectrum and dark energy's equation of state, proposing a cosmic IR/UV duality that constrains the CMB cutoff.
Contribution
It introduces a novel connection between CMB low multipole suppression and dark energy via a cosmic IR/UV duality, relating the CMB cutoff to dark energy parameters.
Findings
IR cutoff in CMB multipoles constrained to 8.5<l<9
Dark energy equation of state linked to CMB spectrum features
Limits on dark energy parameters imply specific CMB cutoff range
Abstract
We investigate a possible connection between the suppression of the power at low multipoles in the 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.
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