Are we seeing the beginnings of Inflation?

Abstract

Phantom Cosmology provides an unique opportunity to "connect" the phantom driven (low en- ergy meV scale) dark energy phase to the (high energy GUT scale) inflationary era. This is possible because the energy density increases in phantom cosmology. We present a concrete model where the energy density, but not the scale factor, cycles through phases of standard radiation/matter domi- nation followed by dark energy/inflationary phases, and the pattern repeating itself. An interesting feature of the model is that once we include interactions between the "phantom fluid" and ordinary matter, the Big rip singularity is avoided with the phantom phase naturally giving way to a near exponential inflationary expansion.

17 pages, 1 figure

References in corpus (21)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Class of viable modified $f(R)$ gravities describing inflation and the onset of accelerated expansion
• Cosmological Evolution of a Quintom Model of Dark Energy
• Starting the Universe: Stable Violation of the Null Energy Condition and Non-standard Cosmologies
• Approaches to Understanding Cosmic Acceleration
• Bouncing Universe with Quintom Matter
• The Effective Theory of Quintessence: the w<-1 Side Unveiled
• The Lee-Wick Standard Model
• Constraining Interactions in Cosmology's Dark Sector
• Adiabatic instability in coupled dark energy-dark matter models
• Bouncing and Accelerating Solutions in Nonlocal Stringy Models
• Initial and final de Sitter universes from modified $f(R)$ gravity
• Phantom Matter and the Cosmological Constant
• Inflation with a Negative Cosmological Constant
• Phantom without UV pathology
• UV stable, Lorentz-violating dark energy with transient phantom era
• On the stability of static ghost cosmologies
• Stringy Model of Cosmological Dark Energy
• Cyclic Inflation
• String Inspired Quintom Model with Non-minimally Coupled Modified Gravity
• Possible treatment of the Ghost states in the Lee-Wick Standard Model

Cited by in corpus (5)

• A Galileon Design of Slow Expansion
• Phantom Inflation in Little Rip
• Phantom Inflation with A Steplike Potential
• The Coincidence Problem and the Swampland Conjectures in the Ijjas-Steinhardt Cyclic Model of the Universe
• Coincidence Problem in Cyclic Phantom Models of the Universe