Large Number Hypothesis

The Large Number Hypothesis ( English , LNH, German hypothesis of large numbers ) is a conjecture in theoretical physics.

It was collected by Paul Dirac in 1937 and deals with the strange accumulation of absolute ratios in the order of magnitude of numbers . For example, the ratio of electromagnetic force to gravity of two elementary particles is of order N, the diameter of the visible universe to the diameter of the proton is also of order N, the number of such particles in this is of the order of magnitude and several other such strange coincidences , therefore also called Large Number Coincidences ). The LNH therefore assumes a connection between the physical laws on a very small scale (elementary particles) and on a cosmological level. ${\displaystyle N=10^{40}}$ ${\displaystyle N^{2}}$

Dirac derived cosmologies with temporally variable gravitational constants and continuous generation of matter.

literature

• Dirac The cosmological constants , Nature, Volume 139, 1937, p. 323
• Dirac A new basis for cosmology , Proc. Royal Society A, Volume 165, 1938, pp. 199-208
• Dirac Directions in Physics , 1978 (Lectures in Australia and New Zealand 1975)

Web links

• Guillermo A. Mena Marugan, Saulo Carneiro: Holography and the large number hypothesis , arxiv : gr-qc / 0111034 (English)
• Unzicker, A .: A Look at the Abandoned Contributions to Cosmology of Dirac, Sciama and Dicke arxiv : 0708.3518 (English)
• Lecture by Paul Dirac (1975) (English)