The Issue of Dark Energy in String Theory

2006/07/01 by Nick E. Mavromatos
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #astro-ph #gr-qc #hep-th

paper · pdf · doi:10.1007/978-3-540-71013-4_12

published as Lect.NotesPhys.720:333-374,2007 · Based on Invited lecture at the ``Third Aegean Summer School on: The Invisible Universe: Dark matter and Dark energy'', Karfas, Chios Island (Greece) September 26-October 1 2005

arxiv created 2006/07/01 · openalex publication_date 2007/07/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Recent astrophysical observations, pertaining to either high-redshift supernovae or cosmic microwave background temperature fluctuations, as those measured recently by the WMAP satellite, provide us with data of unprecedented accuracy, pointing towards two (related) facts: (i) our Universe is accelerated at present, and (ii) more than 70 % of its energy content consists of an unknown substance, termed dark energy, which is believed responsible for its current acceleration. Both of these facts are a challenge to String theory. In this review I outline briefly the challenges, the problems and possible avenues for research towards a resolution of the Dark Energy issue in string theory.

Citations

• Entropy and Area
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Particle creation by black holes
• The dS/CFT Correspondence
• Les Houches Lectures on De Sitter Space
• Black Holes and Entropy
• The pre-big bang scenario in string cosmology