An Effective Theory for Biased Tracers via the Boltzmann-Equation Approach
The Boltzmann Equation Approach (BEA) provides a unified theory to describe density and velocity bias for biased tracers by incorporating an effective collision term into the tracer's Boltzmann equation. This method derives density and velocity bias from a single dynamical framework, offering a self-consistent description that yields specific predictions for observable power spectra in redshift-space distortions.