Asymmetric inflation: Exact solutions

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.73.063529· OSTI ID:20782633

Buniy, Roman V ^[1]; Berera, Arjun ^[2]; Kephart, Thomas W ^[3]

---

1. Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (United States)
2. School of Physics, University of Edinburgh, Edinburgh, EH9 3JZ (United Kingdom)
3. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)

We provide exact solutions to the Einstein equations when the universe contains vacuum energy plus a uniform arrangement of magnetic fields, strings, or domain walls. Such a universe has planar symmetry; i.e., it is homogeneous but not isotropic. Further exact solutions are obtained when dust is included and approximate solutions are found for w{ne}0 matter. These cosmologies also have planar symmetry. These results may eventually be used to explain some features in the Wilkinson Microwave Anisotropy Probe data. The magnetic field case is the easiest to motivate and has the highest possibility of yielding reliable constraints on observational cosmology.

• OSTI ID: 20782633
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 6; Other Information: DOI: 10.1103/PhysRevD.73.063529; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANISOTROPY
ASYMMETRY
COSMOLOGY
DUSTS
EINSTEIN FIELD EQUATIONS
EXACT SOLUTIONS
INFLATIONARY UNIVERSE
MAGNETIC FIELDS
RELICT RADIATION
SYMMETRY
UNIVERSE
VACUUM STATES