Mermin–Wagner theorem
id:
mermin-wagner-theorem-205-2565767
title:
Mermin–Wagner theorem
text:
In quantum field theory and statistical mechanics, the Hohenberg–Mermin–Wagner theorem or Mermin–Wagner theorem states that continuous symmetries cannot be spontaneously broken at finite temperature in systems with sufficiently short-range interactions in dimensions d ≤ 2. Intuitively, this theorem implies that long-range fluctuations can be created with little energy cost, and since they increases the entropy, they are favored. This preference is because if such a spontaneous symmetry breaking
brand slug:
wiki
category slug:
encyclopedia
description:
No spontaneous symmetry breaking in two-dimensional systems at finite temperature
original url:
https://en.wikipedia.org/wiki/Mermin%E2%80%93Wagner_theorem
date created:
2006-02-24T21:42:10Z
date modified:
2024-09-10T05:40:48Z
main entity:
{"identifier":"Q1547975","url":"https://www.wikidata.org/entity/Q1547975"}
image:
fields total:
13
integrity:
15