Density of states for gravitational waves
Felix Springer, David Schaich
TL;DR
This paper investigates the gravitational wave spectrum resulting from a first-order confinement transition in a composite dark matter model, utilizing advanced density of states algorithms to improve computational efficiency.
Contribution
It introduces the application of the LLR density of states algorithm to study the confinement transition in a dark matter model, enabling more accurate predictions of gravitational wave signals.
Findings
Successful reproduction of known results for U(1) gauge theory
Application of LLR algorithm to SU(4) gauge theory
Insights into gravitational wave spectra from dark matter transitions
Abstract
We present ongoing investigations of the first-order confinement transition of a composite dark matter model, to predict the resulting spectrum of gravitational waves. To avoid long autocorrelations at the first-order transition, we employ the Logarithmic Linear Relaxation (LLR) density of states algorithm. After testing our calculations by reproducing existing results for compact U(1) lattice gauge theory, we focus on the pure-gauge SU(4) theory related to the Stealth Dark Matter model.
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Taxonomy
TopicsCosmology and Gravitation Theories · Atomic and Subatomic Physics Research · Pulsars and Gravitational Waves Research