Probing the gravitational wave signature from cosmic phase transitions at different scales

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.044001· OSTI ID:21420939

Krauss, Lawrence M; Dent, James ^[1]; Jones-Smith, Katherine; Mathur, Harsh ^[2]

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1. School of Earth and Space Exploration and Physics Department, Arizona State University, Tempe, Arizona 85287-1404 (United States)
2. CERCA, Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106-7079 (United States)

We present a new signature by which 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 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.

• OSTI ID: 21420939
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevD.82.044001; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPARATIVE EVALUATIONS
DETECTION
GRAVITATIONAL RADIATION
GRAVITATIONAL WAVES
PHASE TRANSFORMATIONS
POLARIZATION
RELICT RADIATION
SCALAR FIELDS
SIMULATION
SPECTRA
ELECTROMAGNETIC RADIATION
EVALUATION
MICROWAVE RADIATION
RADIATIONS