Cosmic microwave background and large-scale structure constraints on a simple quintessential inflation model

Journal Article · Wed Nov 01 00:00:00 EST 2006 · Phys.Rev.D75:043513,2007

OSTI ID:897590

Rosenfeld, Rogerio; Frieman, Joshua A

We derive constraints on a simple quintessential inflation model, based on a spontaneously broken {Phi}{sup 4} theory, imposed by the Wilkinson Microwave Anisotropy Probe three-year data (WMAP3) and by galaxy clustering results from the Sloan Digital Sky Survey (SDSS). We find that the scale of symmetry breaking must be larger than about 3 Planck masses in order for inflation to generate acceptable values of the scalar spectral index and of the tensor-to-scalar ratio. We also show that the resulting quintessence equation-of-state can evolve rapidly at recent times and hence can potentially be distinguished from a simple cosmological constant in this parameter regime.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 897590
• Report Number(s): FERMILAB-PUB-06-443-A; PRVDAQ; arXiv eprint number astro-ph/0611241; TRN: US200711%%77
• Journal Information: Phys.Rev.D75:043513,2007, Vol. 75; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
COSMOLOGICAL CONSTANT
PROBES
RELICT RADIATION
SCALARS
SKY
SYMMETRY BREAKING
Astrophysics