2)Radiation ofelectric dipole(ideal dipole/radiation zone).Vector/scalar potential by electric )Rcaenwttpt 4.教学方法 Lectures,discussions,ete 5.教学评价 Corresponding exercises and supplementary exercises afer class Chapter 12:Electrodynamics and Relativity 1.教学目标 understanding and relativity Explain causality and its relationship to Minkowski Space-Time diagram.Interval. 2.教学重难点 Relativity,causality 3.教学内容 ions 2)=Scalar product is invariant with respect to Lorentz transformation 3)Displacement 4-vector.interval between two events is invariant. 4)Minkowski Space-Time diagram:time-like,space-like,light-like:causality Session 3 Four-dimensional electrodynamics heotveor Poper time and proper vloity ell's equation 4.教学方法 Lectures,discussions,etc. 5.教学评价 Corresponding exercises and supplementary exercises after class Session 3 Radiation 1) Order of 1/r if a source can radiate. Static sources don’t radiate. 2) Radiation of electric dipole (ideal dipole/radiation zone). Vector/scalar potential by electric dipole 3) Radiation pattern, Rayleigh scattering 4) Radiation of magnetic dipole. Comparison to electric dipole. 4.教学方法 Lectures, discussions, etc. 5.教学评价 Corresponding exercises and supplementary exercises after class. Chapter 12: Electrodynamics and Relativity 1.教学目标 Understand difference between classical time and space understanding and relativity. Solve problems with time dilation and length contraction Explain causality and its relationship to Minkowski Space-Time diagram. Interval. 2.教学重难点 Relativity, causality 3.教学内容 Session 1 Introduction to relativity 1) Michelson-Morley experiment. Absolute frame: required by Maxwell’s equation itself 2) Einstein’s postulations 3) Time dilation and length contraction 4) Lorentz transformations Session 2 Four-dimension vector 1) Einstein’s notation: contravariant vector/covariant vector 2) a b ab      . Scalar product is invariant with respect to Lorentz transformation 3) Displacement 4-vector. interval between two events is invariant. 4) Minkowski Space-Time diagram: time-like, space-like, light-like; causality Session 3 Four-dimensional electrodynamics 1) Other four-dimensional vectors: velocity vector. Proper time and proper velocity 2) Four-dimensional momentum. E=mc2 3) Relativistic expression of Maxwell’s equation 4.教学方法 Lectures, discussions, etc. 5.教学评价 Corresponding exercises and supplementary exercises after class