Gravitational Wave Sources from New Physics

Abstract

Forthcoming advances in direct gravitational wave detection from kilohertz to nanohertz frequencies have unique capabilities to detect signatures from or set meaningful constraints on a wide range of new cosmological phenomena and new fundamental physics. A brief survey is presented of the post-inflationary gravitational radiation backgrounds predicted in cosmologies that include intense new classical sources such as first-order phase transitions, late-ending inflation, and dynamically active mesoscopic extra dimensions. LISA will provide the most sensitive direct probes of such phenomena near TeV energies or Terascale. LISA will also deeply probe the broadband background, and possibly bursts, from loops of cosmic superstrings predicted to form in current models of brane inflation.

11 pages, Latex, 4 figures, invited talk at Sixth International LISA Symposium

Cited by in corpus (10)

• Theory and Numerics of Gravitational Waves from Preheating after Inflation
• A Gravitational Wave Background from Reheating after Hybrid Inflation
• The Spectrum of Gravitational Radiation from Primordial Turbulence
• Stochastic Gravitational Wave Background from Light Cosmic Strings
• Gravitational Radiation from Primordial Helical MHD Turbulence
• Observing cosmic string loops with gravitational lensing surveys
• Stochastic Backgrounds of Gravitational Waves from Cosmological Sources: Techniques and Applications to Preheating
• Limits on the speed of gravitational waves from pulsar timing
• Gravitational Waves from the Non-Perturbative Decay of Condensates along Supersymmetric Flat Directions
• Search for a stochastic gravitational-wave signal in the second round of the Mock LISA Data Challenges