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Electromagnetic pulses are self-contained propagating linked electric and magnetic fields. They are solutions of Maxwell's equations. We study all the possible forms of pulses localized in space-time, and calculate their energy, momentum, angular momentum and chiral (twistedness) properties.
This short monograph presents the theory of electromagnetic pulses in a simple and physical way. All pulses discussed are exact localized solutions of the Maxwell equations, and have finite energy, momentum and angular momentum. There are eight chapters: on Fundamentals, Solutions of the Wave Equation, Electromagnetic Pulses, Angular Momentum, Lorentz Transformation of pulses, Chirality, Polarization, and a final one summarizing and comparing various electromagnetic pulses and their properties. Eighteen Appendices cover mathematical or associated aspects. The subject matter is restricted to free-space classical electrodynamics, but contact is made with quantum theory in proofs that causal pulses are equivalent to superpositions of photons.
John Lekner is Emeritus Professor of theoretical physics at Victoria University of Wellington, New Zealand. After an MSc at the University of Auckland and PhD at the University of Chicago, he taught at the Cavendish Laboratory, Cambridge, where he was also Fellow and Tutor in Physics at Emmanuel College. He has worked in statistical physics, electromagnetism, quantum theory and fluid mechanics. He is the author of 170 papers and of the books "Theory of Reflection" (2ed, Springer 2016), "Electrostatics of conducting cylinders and spheres" (AIP Publishing 2021), and "Theory of electromagnetic beams" (Springer 2022).
Preface
Author biography
1 Fundamentals
2 Solutions of the wave equation
3 Electromagnetic pulses
4 Angular momentum
5 Lorentz transformation of pulses
6 Chirality
7 Polarization
8 Summary and comparison of pulse properties
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