TY - JOUR
T1 - Probing the gravitational wave signature from cosmic phase transitions at different scales
AU - Krauss, Lawrence
AU - Jones-Smith, Katherine
AU - Mathur, Harsh
AU - Dent, James
PY - 2010/8/4
Y1 - 2010/8/4
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77956928870&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956928870&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.82.044001
DO - 10.1103/PhysRevD.82.044001
M3 - Article
AN - SCOPUS:77956928870
SN - 1550-7998
VL - 82
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 4
M1 - 044001
ER -