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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

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Detectable Gravitational Wave Signals from Affleck-Dine Baryogenesis.

Graham White¹, Lauren Pearce², Daniel Vagie³

¹Kavli IPMU (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.

Physical Review Letters

|November 12, 2021

Summary

This summary is machine-generated.

Affleck-Dine baryogenesis generates the universe's baryon asymmetry via scalar condensate evolution. This process forms Q balls, potentially creating a detectable gravitational wave signal, offering a test for this baryogenesis model.

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Area of Science:

Cosmology
Particle Physics
Gravitational Wave Astronomy

Background:

The Affleck-Dine mechanism explains the universe's baryon asymmetry through scalar field evolution.
Scalar condensates in this model fragment into nontopological solitons called Q balls.
Long-lived Q balls can cause an early matter domination era.

Purpose of the Study:

To investigate the gravitational wave signals produced by Affleck-Dine baryogenesis.
To explore how Q ball formation and decay impact the gravitational wave spectrum.
To identify observable signatures for testing Affleck-Dine baryogenesis.

Main Methods:

Analysis of scalar condensate fragmentation into Q balls.
Modeling the early matter domination epoch caused by Q balls.
Calculating the resulting gravitational wave power spectrum.
Considering constraints from gravitino over-abundance and detector sensitivities (Einstein Telescope, DECIGO).

Main Results:

Affleck-Dine baryogenesis can lead to an early matter domination phase.
The decay of Q balls generates a sharp peak in the gravitational wave power spectrum.
Peak frequencies within the sensitivity range of future detectors like the Einstein Telescope and DECIGO are favored.

Conclusions:

The gravitational wave signal from Affleck-Dine baryogenesis provides a potential observable test.
Detecting this specific gravitational wave signature would support the Affleck-Dine mechanism.
This research connects particle physics models of baryogenesis with gravitational wave astronomy.