| 电磁场的寖渐施加撤除与能量算符(英文) |
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| 引用本文： | 柯务本,钱尚武.电磁场的寖渐施加撤除与能量算符(英文)[J].北京大学学报(自然科学版),1990(3). |
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| 作者姓名： | 柯务本 钱尚武 |
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| 作者单位： | 北德克萨斯大学物理学系，北京大学物理学系 中国科学院理论物理学研究所 |
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| 摘 要： | 当电磁场(宀浸)渐施加并随后(宀浸)渐撤除之后,电磁场为零而矢势和标势仍可不为零。在这情形下必须用能量算符而不能用哈密顿量去计算系统处于一能量本征态的几率。在电磁场为零时势为零这种规范中,能量算符化为未扰动哈密顿量,这时能用通常的方法计算几率。
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| 关 键 词： | 能量算符 哈密顿量 规范不变几率 电磁场的寝渐施撤 |
Adiabatic Switching of Electromagnetic Fields and the Energy Operator |
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| Donald H. Kobe.Adiabatic Switching of Electromagnetic Fields and the Energy Operator[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1990(3). |
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| Authors: | Donald H Kobe |
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| Abstract: | When the electromagnetic field is adiabatically switched on and subsequently switched off, the vector and scalar potentials can still be nonzero when the electromagnetic fiele is zero. In this case it is necessary to use the energy operator, not the Hamiltonian, to calculate the probability that the system is in an energy eigenstate. In the gauge in which the potentials are zero when the field is zero, the energy operator reduces to the unperturbed Hamiltonian and the usual procedure for calculating probabilities can be used. |
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| Keywords: | Energy operator- Hamiltonian Probability Adiabatic switching of elec-tromagnetic fields |
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