Quadrupolar Order in the Quantum XY Model with Cubic Anisotropy
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概要
- 論文の詳細を見る
We present a new algorithm for the quantum S=1 XY model with cubic anisotropy. In two dimensions, by studying the behaviour of the quadrupolar moment, we find the magnitude of the anisotropy at which a presumably ferromagnetic phase terminates. This point coincides with the phase boundary between the ferromagnetic phase and the quadrupolar phase determined by the mean-field theory. However, in contrast to the mean-field prediction, there is no quadrupolar phase just above the phase boundary.
- 理論物理学刊行会の論文
- 2002-06-28
著者
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Harada Kenji
Department Of Cardiology Chubu-rosai Hospital
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Kawashima Naoki
Department Of Physics Faculty Of Science University Of Tokyo
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Kawashima Naoki
Department Of Physics Tokyo Metropolitan University
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Harada Kenji
Department Of Applied Analysis And Complex Dynamical Systems Kyoto University
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