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'''Herbert Wagner''' (born 6 April 1935) is a German theoretical physicist, who mainly works in [[statistical mechanics]]. He is a [[professor emeritus]] of [[Ludwig Maximilian University of Munich]]. | |||
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==Biography== | |||
Wagner was one of the last students of German theoretical physicist and Nobel prize winner [[Werner Heisenberg]], with whom he worked on magnetism.<ref>W. Heisenberg, H. Wagner, K. Yamazaki: "Magnons in a model with antiferromagnetic properties", Il Nuovo Cimento 59, 377-391 (1969), {{doi|10.1007/BF02755024}}.</ref> | |||
As a postdoc at [[Cornell University]], he and [[David Mermin]] (and independently of [[Pierre Hohenberg]]) proved a "no-go theorem", otherwise known as the [[Mermin–Wagner theorem]]. The theorem states that continuous symmetries cannot be [[spontaneous symmetry breaking|spontaneously broken]] at finite temperature in systems with sufficiently short-range interactions in dimensions <math>d \le 2</math>.<ref>N.D. Mermin, H. Wagner: "Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models", Phys. Rev. Lett. 17, 1133–1136 (1966).</ref> | |||
Wagner is the academic father of a generation of statistical physicists. Many of his students and junior collaborators now occupy chairs in German universities, including Hans Werner Diehl (Essen), Siegfried Dietrich (Wuppertal, then Stuttgart), Klaus Mecke (Erlangen), Reinhard Lipowsky (Max Planck Institute of Colloids and Interfaces, Berlin), Hartmut Löwen (Düsseldorf) and Udo Seifert (Stuttgart). | |||
==Awards== | |||
In 1992, Wagner was awarded an [[honorary degree]] by the University of [[Essen]] (now [[University of Duisburg-Essen]]).<ref>[http://www.theo-phys.uni-essen.de/tp/Ehrenpromotionen.html Ehrenpromotionen in der Theoretischen Physik an der Universität [Duisburg-]Essen]</ref> | |||
==References== | |||
{{reflist}} | |||
{{Persondata <!-- Metadata: see [[Wikipedia:Persondata]]. --> | |||
| NAME = Wagner, Herbert | |||
| ALTERNATIVE NAMES = | |||
| SHORT DESCRIPTION = German physicist | |||
| DATE OF BIRTH = 6 April 1935 | |||
| PLACE OF BIRTH = | |||
| DATE OF DEATH = | |||
| PLACE OF DEATH = | |||
}} | |||
{{DEFAULTSORT:Wagner, Herbert}} | |||
[[Category:German physicists]] | |||
[[Category:1935 births]] | |||
[[Category:Ludwig Maximilian University of Munich faculty]] | |||
[[Category:Living people]] | |||
[[Category:Theoretical physicists]] | |||
{{Germany-physicist-stub}} | |||
Revision as of 22:04, 24 December 2013
Herbert Wagner (born 6 April 1935) is a German theoretical physicist, who mainly works in statistical mechanics. He is a professor emeritus of Ludwig Maximilian University of Munich.
Biography
Wagner was one of the last students of German theoretical physicist and Nobel prize winner Werner Heisenberg, with whom he worked on magnetism.[1]
As a postdoc at Cornell University, he and David Mermin (and independently of Pierre Hohenberg) proved a "no-go theorem", otherwise known as the Mermin–Wagner theorem. The theorem states that continuous symmetries cannot be spontaneously broken at finite temperature in systems with sufficiently short-range interactions in dimensions .[2]
Wagner is the academic father of a generation of statistical physicists. Many of his students and junior collaborators now occupy chairs in German universities, including Hans Werner Diehl (Essen), Siegfried Dietrich (Wuppertal, then Stuttgart), Klaus Mecke (Erlangen), Reinhard Lipowsky (Max Planck Institute of Colloids and Interfaces, Berlin), Hartmut Löwen (Düsseldorf) and Udo Seifert (Stuttgart).
Awards
In 1992, Wagner was awarded an honorary degree by the University of Essen (now University of Duisburg-Essen).[3]
References
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Template:Germany-physicist-stub
- ↑ W. Heisenberg, H. Wagner, K. Yamazaki: "Magnons in a model with antiferromagnetic properties", Il Nuovo Cimento 59, 377-391 (1969), 21 year-old Glazier James Grippo from Edam, enjoys hang gliding, industrial property developers in singapore developers in singapore and camping. Finds the entire world an motivating place we have spent 4 months at Alejandro de Humboldt National Park..
- ↑ N.D. Mermin, H. Wagner: "Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models", Phys. Rev. Lett. 17, 1133–1136 (1966).
- ↑ Ehrenpromotionen in der Theoretischen Physik an der Universität [Duisburg-]Essen