| 量子体系中外场对体系熵的影响 |
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| 引用本文： | 丁峰 张晨. 量子体系中外场对体系熵的影响[J]. 复旦学报(自然科学版), 1997, 36(3): 330-336 |
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| 作者姓名： | 丁峰 张晨 |
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| 作者单位： | 复旦大学物理学系!上海，200433 |
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| 基金项目： | 国家自然科学基金，国家教委高等学校博士学科点专项科研基金 |
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| 摘 要： | 讨论并计算了量子情况下磁场中二维电子气体系的熵，发现存在磁场时二维电子气体系的熵有可能大于无磁场时的熵，从而证明了对于在外场下的量子体系Ｂａｉｅｒｌｅｉｎ的观点不成立。
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| 关 键 词： | 熵 外场 量子体系 体系熵 磁场 电子气 |
The effects of external fields on the entropy of quantum systems |
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| Ding Feng,Zhang Cheng, Yu Quan, Dai Xianxi. The effects of external fields on the entropy of quantum systems[J]. Journal of Fudan University(Natural Science), 1997, 36(3): 330-336 |
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| Authors: | Ding Feng Zhang Cheng Yu Quan Dai Xianxi |
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| Affiliation: | Department of Physics |
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| Abstract: | in this paper, the entropy of a certain quantum system, the 2D electron gas in themagnetic field has been calculated and discussed. It is found that the entropy of the 2D electron gas in the magnetic field could be larger than that of the same system without field.This result disproved the Baierlein's idea: The entropy of any thermal system will decreasewhen the external field or the interaction are applied. |
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| Keywords: | Entropy External field |
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