Quasiaverages, symmetry breaking and irreducible Green functions method

• Published in: Condensed Matter Physics
• Date: 2010
• Main Author: Kuzemsky, A.L.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2010
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/32118
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Quasiaverages, symmetry breaking and irreducible Green functions method / A.L. Kuzemsky // Condensed Matter Physics. — 2010. — Т. 13, № 4. — С. 43001:1-20. — Бібліогр.: 62 назв. — англ.

The development and applications of the method of quasiaverages to quantum statistical physics and to quantum solid state theory and, in particular, to quantum theory of magnetism, were considered. It was shown that the role of symmetry (and the breaking of symmetries) in combination with the degene...