Radiation Processes in Strong Magnetic Fields
Since the discovery of cyclotron lines in the spectrum of the X-ray pulsar Her X-1  much effort has gone into theoretical work on radiation processes and radiation transport in hot (~ 108 K) and strongly magnetized (~ 108 Vsm−2) plasma (see Mészáros  for a review). Apart from its astrophysical relevance for pulsars, and possibly γ-ray bursts, this problem also offers a unique opportunity of learning about fundamental physics: the interaction of light and matter. I have been studying this problem for quite a number of years now, but only recently did I find a consistent and promising way to attack it—using quantum field theoretical methods. Let me try to convince you that radiation processes in magnetic fields are a challenging research project—a project which is just at its beginning, and a lot of interesting exercises in quantum electrodynamics are still in store. But before I come to these fundamental aspects let me talk about the astrophysical background of the problem.
KeywordsVelocity Fluctuation Radiation Process Soft Photon Kubo Formula Cyclotron Radiation
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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