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Books > Science & Mathematics > Physics > Quantum physics (quantum mechanics)
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The Quantum Theory of Radiation (Hardcover)
Loot Price: R6,023
Discovery Miles 60 230
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The Quantum Theory of Radiation (Hardcover)
Series: International Series of Monographs on Physics, 86
Expected to ship within 12 - 19 working days
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This book is unique in covering phenomena in photon- matter
interactions in a unified way over a range of many orders in
energy. The quantum field theoretic approach to the fully
relativistic theory of quantum electrodynamics (QED) is presented
together with the non- relativistic theory in both confined and
unconfined geometries. The predictions of QED have been verified to
a greater accuracy than any other physical theory. Moreover QED is
a paradigm for other gauge theories and is presented in such a way
that the generalisation to other gauge theories is natural. Gauge
and Poincare symmetry properties and the non-existence of a photon
wave function are thoroughly discussed. Starting from the Dirac
equation the non-relativistic interaction of the electron with the
electromagnetic field is derived as an effective Hamiltonian of
multipole expansions. Much of quantum optics is based on the lowest
order dipole approximation. From this point on the treatment of
fully relativistic QED and quantum optics is done in parallel.
Applications of perturbation theory such as Compton and Moller
scattering and the theory photdetection are given. After the
impressive successes of QED, the limitation of the theory and the
necessity of electroweak theory and quantumchromodynamics are
discussed. The remaining chapters are devoted to quantum optics
inside cavaties. Various approaches to open systems such as master
equations are discussed within the context of active systems (e.g.
the laser) and passive systems. Semi- classical approximarions are
shown to imply a rich non- linear dynamics including chaos for
certain parameter regimes. The effect of fluctuations on such
non-linear dynamics is also studied. The final chapter is devoted
to highly non- classical states of the light field such as photon
number, squeezed and two photon entangled states. The latter are
studied for the important system of parametric down conversion and
the localisation properties of photons are characterised in terms
of asympotic tails in photodetection probabilities as a function of
time delay. The range of the book has wider benefits. Workers in
quantum optics will gain a deeper understanding of the foundations
of their subject and field theorists will see concrete examples of
open systems, which are beginning to impinge on fundamental
theories.
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