Vortices in Two-Dimensional Anisotropic σ Models
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概要
- 論文の詳細を見る
We define a topological number and clarify its role played in two-dimensional anisotropic σ models. Non-dissipative metastable states are obtained as counter-examples to which Derrick's theorem cannot be applied. Each metastable state classified by the topological number q turms out to carry ∣q∣ vortices and ∣q∣ stagnation points for the cases of XY-like anisotropy and to involve ∣q∣ antiparallel core spins for those of Ising-like one. The range and strength of vortices are studied in detail for the XY-model obtained from present systems.
- 1981-01-25
著者
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OTSU Hideharu
Department of Physics, Nagoya University
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Otsu Hideharu
Department Of Physics Nagoya University
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Watanabe Tadashi
Department Of Food Science And Technology Faculty Of Bioindustry Tokyo University Of Agriculture
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Watanabe Tadashi
Department Of Physics Kobe University
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WATANABE Tadashi
Department of Environmental Science and Resources, Faculty of Agriculture, Tokyo-Noko- University
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Watanabe Tadashi
Department of Physics, Kyushu University
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