2012/10/31 by Michael P. Salem, Michael P Salem, Prashant Saraswat +1 · 1 citation
Physics and Astronomy · #Bubble #COSMIC cancer database #Context (archaeology) #Cosmology and Gravitation Theories #False vacuum #Gravitational wave #Gravity wave #Hubble volume #Polarization (electrochemistry) #Pulsars and Gravitational Waves Research #Quantum Electrodynamics and Casimir Effect #astro-ph.CO #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1088/1475-7516/2013/02/019
26 pages plus references, 5 figures; v2: references updated, agrees with published version
arxiv created 2013/02/13 · openalex publication_date 2013/02/13 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.