Quantum electrodynamics is a quantum field theory of the electromagnetic force. Taking the example of the force between two electrons, the classical theory of electromagnetism would describe it as arising from the electric field produced by each electron at the position of the other. The force can be calculated from Coulomb’s law. The quantum field theory approach visualizes the force between the electrons as an exchange force arising from the exchange of virtual photons. Quantum electrodynamics applies to all electromagnetic phenomena associated with charged fundamental particles such as electrons and positrons, and the associated phenomena such as pair production, electron-positron annihilation, Compton scattering, etc. The text Quantum electrodynamics is intended to provide the theories of fundamental interactions of matter, the strong force, the weak force, and the gravitational force. First chapter focuses on reverse engineering approach to quantum electrodynamics. Second chapter describes the background and results of revised quantum electrodynamic theory, summarizing the weak points of conventional theories, the unification of included fundamental concepts, the present basic field equations, new obtained results, and special points of experimental support. Third chapter introduces a new scalable cavity quantum electrodynamics platform which can be used for quantum computing and fourth chapter reviews on electrodynamics. Fifth chapter focuses on self-localized quasi-particle excitation in quantum electrodynamics and its physical interpretation and sixth chapter reviews on many-body perturbation and quantum electrodynamics. A coherence preservation control strategy in cavity QED based on classical quantum feedback has been highlighted in seventh chapter and potentialities of revised quantum electrodynamics are highlighted in eighth chapter. In ninth chapter, we investigate the possibility of directly coupling an electron spin qubitto a superconducting resonator magnetic vacuum field and tenth chapter examines the possibility of all-optical atomic beam focusing, but find that it requires unreasonable experimental parameters. In eleventh chapter, we study the high-energy behavior of the scattering amplitudes in quantum electrodynamics beyond the leading order of the small electron mass expansion in the leading logarithmic approximation and twelfth chapter revises quantum electrodynamics. A theory for the calculation of self-energy corrections to the nuclear is given in thirteenth chapter and fourteenth chapter proposes new approach to quantum electrodynamics. Fifteenth chapter deals with the maximal Hermitian but nonself-adjoint operator for time which appears in nonrelativistic quantum mechanics and in quantum electrodynamics for systems with continuous energy spectra and also, briefly, with the four-momentum and four-position operators, for relativistic spin-zero particles. Two measures of averaging over time and connection between them are analyzed
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