The Fischler–Susskind mechanism, first proposed by

Willy Fischler Willy Fischler (born 1949 in Antwerp, Belgium) is a theoretical physicist. He is the Jane and Roland Blumberg Centennial Professor of Physics at the University of Texas at Austin, where he is affiliated with the Weinberg theory group. He is als ...

and

Leonard Susskind Leonard Susskind (; born June 16, 1940)his 60th birth anniversary was celebrated with a special symposium at Stanford University.in Geoffrey West's introduction, he gives Suskind's current age as 74 and says his birthday was recent. is an Americ ...

in 1998, is a holographic prescription based on the

particle horizon The particle horizon (also called the cosmological horizon, the comoving horizon (in Scott Dodelson's text), or the cosmic light horizon) is the maximum distance from which light from particles could have traveled to the observer in the age o ...

. The Fischler–Susskind prescription is used to obtain the maximum number of degrees of freedom per

Planck volume In particle physics and physical cosmology, Planck units are a system of units of measurement defined exclusively in terms of four universal physical constants: '' c'', '' G'', '' ħ'', and ''k''B (described further below). Expressing one of t ...

at the Planck era, compatible with the holographic principle.

References

Physical cosmology Leonard Susskind {{physical-cosmology-stub