Gravity waves from cosmic bubble collisions

Journal Article · Fri Feb 01 00:00:00 EST 2013 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2013/02/019· OSTI ID:22283019

Salem, Michael P.; Saraswat, Prashant; Shaghoulian, Edgar ^[1]

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1. Stanford Institute for Theoretical Physics and Department of Physics, Stanford University, Stanford, California 94305 (United States)

Our local Hubble volume might be contained within a bubble that nucleated in a false vacuum with only two large spatial dimensions. We study bubble collisions in this scenario and find that they generate gravity waves, which are made possible in this context by the reduced symmetry of the global geometry. These gravity waves would produce B-mode polarization in the cosmic microwave background, which could in principle dominate over the inflationary background.

• OSTI ID: 22283019
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
GEOMETRY
INFLATIONARY UNIVERSE
INFLATONS
POLARIZATION
RELICT RADIATION
SYMMETRY