From Wikipedia, the free encyclopedia

A Gaussian fixed point is a fixed point of the renormalization group flow which is noninteracting in the sense that it is described by a free field theory. [1] The word Gaussian comes from the fact that the probability distribution is Gaussian at the Gaussian fixed point. This means that Gaussian fixed points are exactly solvable ( trivially solvable in fact). Slight deviations from the Gaussian fixed point can be described by perturbation theory.

See also

References

  1. ^ Zinn-Justin, Jean (3 May 2010). "Critical Phenomena: field theoretical approach". Scholarpedia. 5 (5). Brain Corporation: 8346. Bibcode: 2010SchpJ...5.8346Z. doi: 10.4249/scholarpedia.8346.


From Wikipedia, the free encyclopedia

A Gaussian fixed point is a fixed point of the renormalization group flow which is noninteracting in the sense that it is described by a free field theory. [1] The word Gaussian comes from the fact that the probability distribution is Gaussian at the Gaussian fixed point. This means that Gaussian fixed points are exactly solvable ( trivially solvable in fact). Slight deviations from the Gaussian fixed point can be described by perturbation theory.

See also

References

  1. ^ Zinn-Justin, Jean (3 May 2010). "Critical Phenomena: field theoretical approach". Scholarpedia. 5 (5). Brain Corporation: 8346. Bibcode: 2010SchpJ...5.8346Z. doi: 10.4249/scholarpedia.8346.



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