Triple point in the $O(2)$ ghost model with higher-order gradient term
| Autor: | Péli, Zoltán, Nagy, Sándor, Sailer, Kornél |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 94, 065037 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.94.065037 |
| Popis: | The phase structure and the infrared behaviour of the Euclidean 3-dimensional $O(2)$ symmetric ghost scalar field $\phi$ has been investigated in Wegner and Houghton's renormalization group framework, including higher-derivatives in the kinetic term. It is pointed out that higher-derivative coupling provides three phases and leads to a triple point in that RG scheme. The types of the phase transitions have also been identified. Comment: 8 pages, 15 figures |
| Databáze: | arXiv |
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