| 外场中含缺陷量子Ising链的严格解 |
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| 引用本文： | 李云,张德刚.外场中含缺陷量子Ising链的严格解[J].四川师范大学学报(自然科学版),1994,17(5):64-67. |
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| 作者姓名： | 李云 张德刚 |
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| 作者单位： | 四川师范大学 |
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| 摘 要： | 本文利用Ｌｉｅｂ、Ｓｃｈｕｌｔｚ和Ｍａｔｔｉｓ发展的费米子方法严格求解含连续缺陷量子Ｉｓｉｎｇ链的低能激谱，当相互作用系数ｆ（ｘ）满足一定条件时，系统能谱具有等间距塔状结构，这表明该类系统仍保持共形不变性。
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| 关 键 词： | 费米子方法 量子伊辛模型 缺陷 严格解 |
THE EXACT SOLUTION OF ISING QUANTUM CHAIN WITH DEFECTS IN EXTERNAL FIELD |
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| Li Yun.THE EXACT SOLUTION OF ISING QUANTUM CHAIN WITH DEFECTS IN EXTERNAL FIELD[J].Journal of Sichuan Normal University(Natural Science),1994,17(5):64-67. |
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| Authors: | Li Yun |
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| Abstract: | The energy spectrum of the Ising Quantum chaining with continuous defects is solved exactly by using fermion technique. The excitation spectrum obtained in the continuous limit have a tower structure when interaction coefficient f(x) is the solution to the differential equation. This means that conformal invariance is preserved in these systems. |
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| Keywords: | Jordan-Wigner transformation Bogoliubov transformation conformal invariance |
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