| 2 | AB效应中电子轨道动量问题的研究显示文摘Aharonov-Bohm(AB)effect[1]shows one of surprising aspects of gauge field in quantum electrodynamics(QED).In classical electrodynamics,the gauge potentials A0(t,x),A(t,x)appear in the middle of calculations.However,final results for observables are only expressed by the electromagnetic field E(t,x),B(t,x). | Yoshio Kitadono Zou Liping Zhang Pengming | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 3 | 质子自旋分解问题:正则轨道角动量和动力学轨道角动量显示文摘Nowadays,people know that proton has spin 1/2,it is not an elementary particle,and it consists of quarks and gluon,due to the success of quark model and quantum chromodynamics(QCD).The QCD is based on the idea of“gauge symmetry”,i.e.QCD Lagrangian and observables are invariant under the gauge transformation for the quark field and the gluon field.The question is,can we understand proton spin in terms of quarks and gluons? | Yoshio Kitadono Zhang Pengming | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
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