10. Pauli-Weisskopf anti-Dirac theory: quantizing Klein-Gordon fields and light скачать в хорошем качестве

10. Pauli-Weisskopf anti-Dirac theory: quantizing Klein-Gordon fields and light

ERRATA: at 23mins, the Fourier coefficients are defined such that they describe the weights of exp(-ikx), which are momentum eigenstates with momentum -k. Therefore, the creation and annihilation operators a_k refer to the creation and annihilation of momentum states -k. It would have been more sensible to define the Fourier transform as an expansion in exp(+ikx). Ultimately, this affects the signs of the complex exponentials in the expression for the quantized field at 30mins. 0:00 Introduction 8:45 Classical field theory 19:40 Quantizing fields 30:24 Klein-Gordon equation/field 41:49 Noether's theorem 48:51 Quantize Klein-Gordon field 58:43 Schrodinger field 1:03:53 Electromagnetic (Maxwell) fields 1:19:22 Photon spin