High energy physics and the very-early Universe with LISA

Abstract

Gravitational wave experiments will play a key role in the investigation of the frontiers of cosmology and the structure of fundamental fields at high energies, by detecting, or setting strong upper-limits to, the primordial gravitational wave background produced in the early-Universe. Here we discuss the impact of space-borne laser interferometric detectors operating in the low-frequency window ($\sim 1\mu$Hz - 1 Hz); the aim of our analysis is to assess the detectability of a primordial background characterized by a fractional energy density $\Omega \sim 10^{-16}-10^{-15}$, which is consistent with the prediction of "slow-roll" inflationary models.

30 pages, six eps figures, revised version

References in corpus (4)

• Gravitational Wave Experiments and Early Universe Cosmology
• Gravitational waves from cosmological compact binaries
• Gravitational Waves from Mesoscopic Dynamics of the Extra Dimensions
• Gravitational waves and the cosmological equation of state

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