Physical cosmology

physics award of the Russian Academy of Sciences

hypothesis that black hole decay causes a new universe (with slightly different fundamental constants) to form, such that universes most suited to black hole formation are the most likely due to natural selection

astronomical survey focused on measuring red shifts of distant galaxies

LiteBIRD (Lite (Light) satellite for the studies of B-mode polarization and Inflation from cosmic background Radiation Detection) is a planned small space observatory that aims to detect the footprint of the primordial gravitational wave on the cosmic microwave background (CMB) in a form of polarization pattern called B-mode.

variation in the Hubble constant

discrepency between observed and predicted amounts of ordinary matter

aspect of the history of modern physical cosmology

astronomical function

effect in cosmology where the spatial distribution of galaxies as a function of redshift appears squashed due to Doppler shift from peculiar velocities on top of cosmological redshift

physical cosmological theory

hypothetical scalar particle

cosmological model in which the universe expands after a Big Bang with increasing entropy and a thermodynamic arrow of time pointing in the direction of the expansion but eventually recontracts with the thermodynamic arrow reversed until a Big Crunch

interdisciplinary science program at Harvard University

physical process

hypothesis

The curvaton is a hypothetical elementary particle which mediates a scalar field in early universe cosmology. It can generate fluctuations during inflation, but does not itself drive inflation, instead it generates curvature perturbations at late times after the inflaton field has decayed and the decay products have redshifted away, when the curvaton is the dominant component of the energy density. It is used to generate a flat spectrum of CMB perturbations in models of inflation where the potential is otherwise too steep or in alternatives to inflation like the pre-Big Bang scenario.

period in the development of the universe when different types of particles fall out of thermal equilibrium with each other

Lorentzian metric describing an isotropic, expanding, nonhomogenous universe

Computer simulation of the universe

in cosmology, an absence of curvature of space

deterministic model of the universe

Lists all real 3-dimensional Lie algebras

microwave horn antenna in New Jersey, US

Analogy to communicate geologic time

Theoretical model of gravity

hypothetical substance

experimental telescope in Australia

event in the early universe, around 1 second after the Big Bang, when the universe cooled down sufficiently so that neutrinos ceased significantly interacting with baryonic matter