String Theory and The Arrow of Time
arXiv:2101.10142 · doi:10.1007/JHEP03(2021)192
Abstract
Time-like linear dilaton triggers, at the classical level, the creation of closed folded strings at an instant. We show that in cosmology these instant folded strings induce negative pressure at no energy cost. Hence they seem to allow an era in which the energy density increases (decreases) while the universe is expanding (contracting). This and other aspects of instant folded strings suggest that they might shed new light on the origin of the arrow of time.
References in corpus (6)
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Why the cosmological constant is small and positive
- Cosmological solutions of supercritical string theory
- Supercritical stability, transitions and (pseudo)tachyons
- Reheating after S-Brane Ekpyrosis
- Instant Folded Strings and Black Fivebranes