Probing the Gravitational Wave Signature from Cosmic Phase Transitions at Different Scales - INSPIRE

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

Lawrence M. Krauss
(
- Arizona State U.
)
,
Katherine Jones-Smith
(
- Case Western Reserve U.
)
,
Harsh Mathur
(
- Case Western Reserve U.
)
,
James Dent
(
- Arizona State U.
)

Mar, 2010

4 pages

Published in:

Phys.Rev.D 82 (2010) 044001

e-Print:

1003.1735 [astro-ph.CO]

DOI:

10.1103/PhysRevD.82.044001

View in:

ADS Abstract Service

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Abstract: (arXiv)

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.

Note:

4 pages, Phys. Rev D version (revised in response to referee's comments)

04.30.-w
98.80.Cq
98.80.Es
gravitational radiation: signature
gravitational radiation: spectrum
field theory: scalar
cosmic background radiation: polarization
critical phenomena
inflation
horizon: crossing

References(7)

Figures(0)

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)

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)
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)

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•
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•
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(
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)
,
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(
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)

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•
e-Print:
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•
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)
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)

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•
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•
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(
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)
,
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(
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)
,
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(
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)
,
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(
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)

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•
e-Print:
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•
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(
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)

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•
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•
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