摘要
在Hartree平均场近似和高温近似下,本文建立了φ~4模型和非拓扑孤子袋模型的某些特解间确定的映射关系。从映射关系我们看到φ~4场的非球对称拓扑孤子和反孤子配对形成束缚态——孤子袋模型的非球对称非拓扑孤子解。当拓扑孤子和反孤子消失时,φ~4模型发生对称性恢复相交;当拓扑孤子和反孤子的束缚态非拓扑孤子消失时,孤子袋模型的退禁闭相变发生。
Under the Hartree mean-field approximaion and the high-temperature approximation, we established the mapping relation between some types of the special solutions of the φ~4 model and the nontopological soliton bag model. From the mapping relation we see that nonsphericaI topological kink and antikink of φ~4 model are paired to form bound state the nonspherical nontopological soliton solution of the nontopological soliton bag model. The symmetry restoration phase transition of the φ~4 model occurs when the topological kink and antikink disappear; And the deconfinement phase transition of the nontopological soliton bag model occurs when the bound state of the topological kind and antikink (nontopological soliton) vanishes.
出处
《高能物理与核物理》
CSCD
北大核心
1991年第9期797-803,共7页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
