| 相对论性粒子螺旋度守恒与能量-动量张量的对称性无关 |
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| 引用本文： | 王锡绂.相对论性粒子螺旋度守恒与能量-动量张量的对称性无关[J].大学物理,1999,18(12):25-26. |
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| 作者姓名： | 王锡绂 |
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| 作者单位： | 东北师范大学物理系,长春,130024 |
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| 摘 要： | 在相对论性量子体系中轨道角动量和自旋不能分别守恒，无论能量－动量张量算符是否对称，守恒的只是总角动量。
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| 关 键 词： | 角动量守恒 螺旋度 能量-动量张量 |
| 修稿时间： | :1999-04-12 |
THE CONSERVATION OF HELISITY FOR A RELATIVISTIC PARTICLE IS NOT DEPENDENT ON THE SYMMETRY OF THE ENERGY-MOMENTUM TENSOR |
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| Wang Xifu.THE CONSERVATION OF HELISITY FOR A RELATIVISTIC PARTICLE IS NOT DEPENDENT ON THE SYMMETRY OF THE ENERGY-MOMENTUM TENSOR[J].College Physics,1999,18(12):25-26. |
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| Authors: | Wang Xifu |
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| Institution: | Wang Xifu;(Department of Physics,Northeast
Normal University,Changchun,130024,China) |
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| Abstract: | In the relativistic quantum system the orbital angular momentum and the spin are not separately conserved.The total angular momentum is conserved,no matter the energy-momentum tensor operator is symmetric or not. \ \ |
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| Keywords: | conservation of angular momentum helisity energy-momentum tensor |
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