| 增强吸收型光双稳临界现象的平均场理论 |
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| 引用本文： | 欧发,魏宝华,刘翠红.增强吸收型光双稳临界现象的平均场理论[J].物理学报,1994,43(5):707-716. |
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| 作者姓名： | 欧发 魏宝华 刘翠红 |
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| 作者单位： | (1)广州师范学院; (2)华南理工大学 |
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| 基金项目： | 国家自然科学基金资助的课题. |
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| 摘 要： | 阐明临界现象（包括两类临界点）与相变的平均场（Ｌａｎｄａｕ）理论同样可以适用于增强吸收型光学双稳性（ＩＡＯＢ）．分析了近期提出的ＩＡＯＢ模型９］的动力学特征，在此基础上引入了一种准热力学势。在临界点（第二类）附近，该种势不仅体现出双稳系统中相变的共性，而且也反映了ＩＡＯＢ的特殊性。
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| 关 键 词： | 光学双稳态 临界点 平均场理论 |
| 收稿时间： | 7/7/1993 12:00:00 AM |
MEAN FIELD THEORY OF CRITICAL PHENOMENA IN INCREASING ABSORPTION OPTICAL BISTABILITY |
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| OU FA,WEI BAO-HUA and LIU CUI-HONG.MEAN FIELD THEORY OF CRITICAL PHENOMENA IN INCREASING ABSORPTION OPTICAL BISTABILITY[J].Acta Physica Sinica,1994,43(5):707-716. |
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| Authors: | OU FA WEI BAO-HUA and LIU CUI-HONG |
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| Abstract: | It is demonstrated that the mean field (Landau) theory of critical phenomena (including the two kinds of critical point) and transitions can also be applied to the increasing absorption optical bistubility (IAOB), far from equilibrium. On the basis of analysing the dynamical fea Lures of the IAOB model proposed recently９］, the socalled quasi-thermodynamic potential is introduced. This potential, near the critical point (of the second kind), reflects not only the general properties of phase transitions in bistable systems, but also the specific characteristics of the IAOB. |
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