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Connections among different phase transition problems in two dimensions

✍ Scribed by Leo P. Kadanoff; M.P.M. den Nijs


Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
36 KB
Volume
106
Category
Article
ISSN
0378-4371

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Excitons in two dimensions: the excitati
✍ Z.G. Koinov πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 85 KB

The Bethe-Salpeter equation for two-dimensional excitons is solved in the low-density limit. The analysis of the collective modes leads to a spectrum of the Bogolubov type. It was found that the critical temperature of the Kosterlitz-Thouless phase transition to exciton superfluidity scales linearly