It is commonly assumed that the energy density of the Universe was dominated by radiation
between reheating after inflation and the onset of matter domination 54,000 years later …

We review the field of collisionless numerical simulations for the large-scale structure of the
Universe. We start by providing the main set of equations solved by these simulations and …

We use a suite of cosmological simulations to study the mass–concentration–redshift
relation, c (M, z), of dark matter haloes. Our simulations include standard Λ-cold dark matter …

We use very high resolution cosmological zoom simulations to follow the early evolution of
12 first-generation haloes formed from gaussian initial conditions with scale-free power …

Dark matter may be in the form of nonbaryonic structures such as compact subhalos and
boson stars. Structures weighing between asteroid and solar masses may be discovered via …

The first generation of haloes forms from the collapse of the smallest peaks in the initial
density field. N-body simulations of this process suggest a prompt formation of a steep …

Ultracompact minihalos (UCMHs) have emerged as a valuable probe of the primordial
power spectrum of density fluctuations at small scales. UCMHs are expected to form at early …

The density profiles of dark matter haloes can potentially probe dynamics, fundamental
physics, and cosmology, but some of the most promising signals reside near or beyond the …

Recent studies indicate that thermally produced dark matter will form highly concentrated,
low-mass cusps in the early universe that often survive until the present. While these cusps …

Self-interacting dark matter (SIDM) offers the potential to mitigate some of the discrepancies
between simulated cold dark matter (CDM) and observed galactic properties. We introduce …