## Atom-photon interactions: basic processes and applicationsAtom-Photon Interactions: Basic Processes and Applications allows the reader to master various aspects of the physics of the interaction between light and matter. It is devoted to the study of the interactions between photons and atoms in atomic and molecular physics, quantum optics, and laser physics. The elementary processes in which photons are emitted, absorbed, scattered, or exchanged between atoms are treated in detail and described using diagrammatic representation. The book presents different theoretical approaches, including: * Perturbative methods * The resolvent method * Use of the master equation * The Langevin equation * The optical Bloch equations * The dressed-atom approach Each method is presented in a self-contained manner so that it may be studied independently. Many applications of these approaches to simple and important physical phenomena are given to illustrate the potential and limitations of each method. |

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### Contents

I | 3 |

B Time Dependence of Transition Amplitudes | 9 |

Application to Electrodynamics | 15 |

Copyright | |

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### Common terms and phrases

Ab(E absorption allows anticrossing appear approximation associated assume average value calculate Chapter coefficient coherences collision commutator Complement consider continuum contribution correlation function corresponding Coulomb coupling damping density density matrix described dipole dressed atom effective Hamiltonian eigenstates eigenvalues electron emitted energy levels equal evolution equation example excited exponential exponential decay expression Figure Finally fluctuations frequency w0 global system incident photon incident radiation initial integral intensity interval ionization Langevin equation Langevin forces laser photons linear manifold master equation matrix elements mode momentum motion nonzero number of photons obtain operator optical Bloch equations particle perturbative photodetector Phys physical polarization probability probability amplitude Quantum Electrodynamics Rabi frequency Rabi oscillation radiation field radiative shift rate of variation rb(E Rb(z replaced represents reservoir resonance result spectrum spin spontaneous emission stimulated emission subsection subspace tion transition amplitude transverse field two-time averages unperturbed vacuum vacuum fluctuations velocity width zero