PHASE STRUCTURE OF MULTIFERMION INTERACTION MODELS IN WEAKLY CURVED SPACE–TIME
PHASE STRUCTURE OF MULTIFERMION INTERACTION MODELS IN WEAKLY CURVED SPACE–TIME
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DOI：
10.1142/s0217751x09047405
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发表时间：
2009-11
影响因子：
1.6
通讯作者：
M. Hayashi;T. Inagaki;H. Takata
中科院分区：
文献类型：
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作者：
M. Hayashi;T. Inagaki;H. Takata
研究了弱弯曲时空中标量型八费米子相互作用模型的相结构。模型的基态是通过观察有效势的极小值得到的。应用黎曼正规坐标展开，我们计算了弱弯曲时空中模型的有效势。结果被扩展到多费米子相互作用的模型。我们数值计算了有效势的行为，并得到了模型的相结构。
The phase structure of a model with a scalar type eight-fermion interaction is investigated in weakly curved space–time. The ground state of the model is obtained by observing the minimum of the effective potential. Applying the Riemann normal coordinate expansion, we calculate an effective potential of the model in a weakly curved space–time. The result is extended to models with multifermion interactions. We numerically show the behavior of the effective potential and obtain the phase structure of the model.