Gravitational waves from the fragmentation of a supersymmetric condensate

Abstract

We discuss the production of gravity waves from the fragmentation of a supersymmetric condensate in the early universe. Supersymmetry predicts the existence of flat directions in the potential. At the end of inflation, the scalar fields develop large time-dependent vacuum expectation values along these flat directions. Under some general conditions, the scalar condensates undergo a fragmentation into non-topological solitons, Q-balls. We study this process numerically and confirm the recent analytical calculations showing that it can produce gravity waves observable by Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO), Laser Interferometer Space Antenna (LISA), and Big Bang Observer (BBO). The fragmentation can generate gravity waves with an amplitude as large as Omega_{GW}~10^{-11} and with a peak frequency ranging from mHz to 10 Hz, depending on the parameters. The discovery of such a relic gravitational background radiation can open a new window on the physics at the high scales, even if supersymmetry is broken well above the electroweak scale.

13 pages, 5 figures

References in corpus (18)

• Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond
• Theory and Numerics of Gravitational Waves from Preheating after Inflation
• Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach
• Gauge invariant MSSM inflaton
• A Gravitational Wave Background from Reheating after Hybrid Inflation
• Gravitational Wave Production At The End Of Inflation
• Dynamical and Gravitational Instability of Oscillating-Field Dark Energy and Dark Matter
• Gravitational Waves From the End of Inflation: Computational Strategies
• Gravitational waves from fragmentation of a primordial scalar condensate into Q-balls
• Some stationary properties of a $Q$-ball in arbitrary space dimensions
• Results of the Search for Strange Quark Matter and Q-balls with the SLIM Experiment
• The inflationary gravitational-wave background and measurements of the scalar spectral index
• Identifying the curvaton within MSSM
• Supersymmetric Q-balls: A Numerical Study
• Entropy production by Q-ball decay for diluting long-lived charged particles
• Exciting gauge field and gravitons in a brane-anti-brane annihilation
• The ground states of baryoleptonic Q-balls in supersymmetric models
• Graviton production from D-string recombination and annihilation

Cited by in corpus (17)

• Cosmology with the Laser Interferometer Space Antenna
• Gravitational Waves from Abelian Gauge Fields and Cosmic Strings at Preheating
• Inflaton Fragmentation and Oscillon Formation in Three Dimensions
• Gravitational waves from the electroweak phase transition
• Gravitational waves at aLIGO and vacuum stability with a scalar singlet extension of the Standard Model
• Detectable Gravitational Wave Signals from Affleck-Dine Baryogenesis
• Q-balls in flat potentials
• Spinning Supersymmetric Q-balls
• Gravitational Waves from the Non-Perturbative Decay of Condensates along Supersymmetric Flat Directions
• Affleck-Dine dynamics, Q-ball formation and thermalisation
• Non-topological solitons and quasi-solitons
• Fate of thermal log type Q balls
• The Physics of Q-balls
• The TeV-mass curvaton
• Q-balls Formation and the Production of Gravitational Waves With Non-minimal Gravitational Coupling
• Extreme gravitational waves from inflaton fragmentation
• Probing baryogenesis with gravitational waves