Constraining dark energy

2012/04/30 by Ulf Danielsson, Ulf H. Danielsson
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Mechanism (biology) #Noncommutative and Quantum Gravity Theories #Particle physics #Physics #Physics beyond the Standard Model #Quantum mechanics #Theoretical physics #astro-ph.CO #hep-th

paper · pdf · doi:10.1088/1475-7516/2012/07/048

8 pages. arXiv admin note: text overlap with arXiv:astro-ph/0606474. Minor misprints corrected

arxiv created 2012/07/11 · openalex publication_date 2012/07/25 · arxiv updated 2015/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

In this paper we propose a mechanism that protects theories violating a holographic bound suggested in arXiv:1203.5476 from developing accelerated expansion. The mechanism builts on work on transplanckian physics, and a non-trivial choice of vacuum states. If correct, it lends further support for detectable signatures in the CMBR signalling new physics.

Citations

• Quantum Gravity Constraints on Inflation
• Transplanckian signatures in WMAP3?
• Back-reaction and the trans-Planckian problem of inflation reexamined
• Note on inflation and trans-Planckian physics
• Minimal modifications of the primordial power spectrum from an adiabatic short distance cutoff
• Entropy and Area
• Trans-Planckian problem of inflationary cosmology