In the history of cosmology an ambiplasma is a hypothetical plasma containing a mixture of both matter and antimatter. This concept was developed as an alternative to the Big Bang theory. In this concept, the universe has always existed and has no "point" origin. Ambiplasma takes the form of proton-antiprotons (heavy ambiplasma) and electrons-positrons (light ambiplasma). Essentially the universe contains heavy symmetric ambiplasma with protective light ambiplasma, separated by the Leidenfrost effect.

Ambiplasmas can be relatively long-lived, as the component particles and antiparticles are too hot and too low-density to annihilate with each other rapidly. Ambiplasma is affected by condensing gravity waves and other expansive radiation pressures. The universe undergoes expansion and contraction frames, over trillions of years, producing heavy ambiplasma (by the quantum flux on space-time) and light ambiplasma in the alternating phase. As matter and antimatter interact and annihilate, more electrons and positrons (among other radiations) are produced.

The concept originally was developed by Klein in 1950. It was extended by Hannes Alfven in 1965 and is conceptualized in the symmetric Alfven-Klein model . The theory has generally fallen in disfavour, as precision measurements of the large scale structure of the universe are in fine agreement with the Lambda-CDM model of Big Bang.

See also: Hannes Alfvén, Plasma cosmology

Related: Antimatter, Big Bang, Non-standard cosmology

External references

• Alfvén, Hannes, "Worlds-Antiworlds: Antimatter in Cosmology". San Francisco and London, 1966.