Cosmological constant
De LibreFind
| Advanced search |
- About 3 results found and you can help!
 Estimated ratios of dark matter and dark energy (which may be the cosmological constant) in the universe. Dark energy now dominates the energy of the universe, in contrast to earlier epochs when it was insignificant. |
In physical cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ) is equivalent to an energy density in otherwise empty space. It was originally proposed by Albert Einstein as a modification of his original theory of general relativity to achieve a stationary universe. Einstein abandoned the concept after the observation of the Hubble redshift indicated that the universe might not be stationary, as he had based his theory on the idea that the universe is unchanging. However, a number of observations including the discovery of cosmic acceleration in 1998 have revived the cosmological constant, and the current standard model of cosmology includes this term.
- See also: Wikipedia
- Related: Quintessence (physics), Einstein's universe, Friedmann equations, Higgs mechanism, Lambdavacuum solution, Naturalness (physics), Quantum electrodynamics, de Sitter relativity, Unruh effect, Vacuum energy, Zero-point energy
| 'Cyclic universe' can explain cosmological constan... 'Cyclic universe' can explain cosmological constant www.newscientistspace.com/article.ns?id=dn9114&print=true - Web |
| News story: More evidence for dark energy being th... News story: More evidence for dark energy being the cosmological constant news.bbc.co.uk/1/hi/sci/tech/6156110.stm - Web |
| Cosmological constant Cosmological constant www.scholarpedia.org/article/Cosmological_constant - Web |
Average relevance
