Formalism
Definition
Spacetime configurations
Properties
Spacetimes
| black hole spacetimes | vanishing angular momentum | positive angular momentum |
|---|---|---|
| vanishing charge | Schwarzschild spacetime | Kerr spacetime |
| positive charge | Reissner-Nordstrom spacetime | Kerr-Newman spacetime |
Quantum theory
The standard model of cosmology, which involves an FRW model of spacetime on cosmological scales,is a solution to Einstein's equations which is undefined (“has a singularity”) a finite time in the past of any co-moving observer. Since from that point on the model describes an expanding observable universe this singularity has been called the “Big Bang”, especially to constrast with the steady state model of cosmology.
Last revised on April 10, 2020 at 15:33:35. See the history of this page for a list of all contributions to it.