[1003.1735] Probing the Gravitational Wave Signature from Cosmic Phase Transitions at Different Scales

Authors: Lawrence M. Krauss (1), Katherine Jones-Smith (2), Harsh Mathur (2), James Dent (1) ((1) Arizona State University (2) Case Western Reserve University)

Date: 8 Mar 2010

Abstract: We present a new signature by which to one could potentially discriminate between a spectrum of gravitational radiation generated by a self-ordering scalar field vs that of inflation, specifically a comparison of the magnitude of a flat spectrum at frequencies probed by future direct detection experiments to the magnitude of a possible polarization signal in the Cosmic Microwave Background (CMB) radiation. In the process we clarify several issues related to the proper calculation of such modes, focusing on the effect of post-horizon-crossing evolution.

abs pdf

Mar 10, 2010

1003.1735 (/preprints)
2010-03-10, 21:09 [edit]

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